From f28beb69c51517aec7067dfb2074e7c751542384 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Mon, 15 Dec 2025 12:57:21 +0100 Subject: [PATCH 01/21] HID: usbhid: paper over wrong bNumDescriptor field Some faulty devices (ZWO EFWmini) have a wrong optional HID class descriptor count compared to the provided length. Given that we plainly ignore those optional descriptor, we can attempt to fix the provided number so we do not lock out those devices. Signed-off-by: Benjamin Tissoires --- drivers/hid/usbhid/hid-core.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index aac0051a2cf6..758eb21430cd 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -985,6 +985,7 @@ static int usbhid_parse(struct hid_device *hid) struct usb_device *dev = interface_to_usbdev (intf); struct hid_descriptor *hdesc; struct hid_class_descriptor *hcdesc; + __u8 fixed_opt_descriptors_size; u32 quirks = 0; unsigned int rsize = 0; char *rdesc; @@ -1015,7 +1016,21 @@ static int usbhid_parse(struct hid_device *hid) (hdesc->bNumDescriptors - 1) * sizeof(*hcdesc)) { dbg_hid("hid descriptor invalid, bLen=%hhu bNum=%hhu\n", hdesc->bLength, hdesc->bNumDescriptors); - return -EINVAL; + + /* + * Some devices may expose a wrong number of descriptors compared + * to the provided length. + * However, we ignore the optional hid class descriptors entirely + * so we can safely recompute the proper field. + */ + if (hdesc->bLength >= sizeof(*hdesc)) { + fixed_opt_descriptors_size = hdesc->bLength - sizeof(*hdesc); + + hid_warn(intf, "fixing wrong optional hid class descriptors count\n"); + hdesc->bNumDescriptors = fixed_opt_descriptors_size / sizeof(*hcdesc) + 1; + } else { + return -EINVAL; + } } hid->version = le16_to_cpu(hdesc->bcdHID); From e9143268d259d98e111a649affa061acb8e13c5b Mon Sep 17 00:00:00 2001 From: Siarhei Vishniakou Date: Tue, 11 Nov 2025 15:45:19 -0800 Subject: [PATCH 02/21] HID: playstation: Center initial joystick axes to prevent spurious events When a new PlayStation gamepad (DualShock 4 or DualSense) is initialized, the input subsystem sets the default value for its absolute axes (e.g., ABS_X, ABS_Y) to 0. However, the hardware's actual neutral/resting state for these joysticks is 128 (0x80). This creates a mismatch. When the first HID report arrives from the device, the driver sees the resting value of 128. The kernel compares this to its initial state of 0 and incorrectly interprets this as a delta (0 -> 128). Consequently, it generates EV_ABS events for this initial, non-existent movement. This behavior can fail userspace 'sanity check' tests (e.g., in Android CTS) that correctly assert no motion events should be generated from a device that is already at rest. This patch fixes the issue by explicitly setting the initial value of the main joystick axes (e.g., ABS_X, ABS_Y, ABS_RX, ABS_RY) to 128 (0x80) in the common ps_gamepad_create() function. This aligns the kernel's initial state with the hardware's expected neutral state, ensuring that the first report (at 128) produces no delta and thus, no spurious event. Signed-off-by: Siarhei Vishniakou Reviewed-by: Benjamin Tissoires Signed-off-by: Benjamin Tissoires --- drivers/hid/hid-playstation.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index 128aa6abd10b..e4dfcf26b04e 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -753,11 +753,16 @@ ps_gamepad_create(struct hid_device *hdev, if (IS_ERR(gamepad)) return ERR_CAST(gamepad); + /* Set initial resting state for joysticks to 128 (center) */ input_set_abs_params(gamepad, ABS_X, 0, 255, 0, 0); + gamepad->absinfo[ABS_X].value = 128; input_set_abs_params(gamepad, ABS_Y, 0, 255, 0, 0); + gamepad->absinfo[ABS_Y].value = 128; input_set_abs_params(gamepad, ABS_Z, 0, 255, 0, 0); input_set_abs_params(gamepad, ABS_RX, 0, 255, 0, 0); + gamepad->absinfo[ABS_RX].value = 128; input_set_abs_params(gamepad, ABS_RY, 0, 255, 0, 0); + gamepad->absinfo[ABS_RY].value = 128; input_set_abs_params(gamepad, ABS_RZ, 0, 255, 0, 0); input_set_abs_params(gamepad, ABS_HAT0X, -1, 1, 0, 0); From 0e13150c1a13a3a3d6184c24bfd080d5999945d1 Mon Sep 17 00:00:00 2001 From: Thomas Fourier Date: Wed, 3 Dec 2025 17:56:35 +0100 Subject: [PATCH 03/21] HID: Intel-thc-hid: Intel-thc: fix dma_unmap_sg() nents value The `dma_unmap_sg()` functions should be called with the same nents as the `dma_map_sg()`, not the value the map function returned. Save the number of entries in struct thc_dma_configuration. Fixes: a688404b2e20 ("HID: intel-thc-hid: intel-thc: Add THC DMA interfaces") Signed-off-by: Thomas Fourier Reviewed-by: Even Xu Reviewed-by: Andy Shevchenko Signed-off-by: Benjamin Tissoires --- drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c | 4 +++- drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c index 82b8854843e0..a0c368aa7979 100644 --- a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c +++ b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c @@ -232,6 +232,7 @@ static int setup_dma_buffers(struct thc_device *dev, return 0; memset(config->sgls, 0, sizeof(config->sgls)); + memset(config->sgls_nent_pages, 0, sizeof(config->sgls_nent_pages)); memset(config->sgls_nent, 0, sizeof(config->sgls_nent)); cpu_addr = dma_alloc_coherent(dev->dev, prd_tbls_size, @@ -254,6 +255,7 @@ static int setup_dma_buffers(struct thc_device *dev, } count = dma_map_sg(dev->dev, config->sgls[i], nent, dir); + config->sgls_nent_pages[i] = nent; config->sgls_nent[i] = count; } @@ -299,7 +301,7 @@ static void release_dma_buffers(struct thc_device *dev, continue; dma_unmap_sg(dev->dev, config->sgls[i], - config->sgls_nent[i], + config->sgls_nent_pages[i], config->dir); sgl_free(config->sgls[i]); diff --git a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h index 78917400492c..541d33995baf 100644 --- a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h +++ b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.h @@ -91,6 +91,7 @@ struct thc_prd_table { * @dir: Direction of DMA for this config * @prd_tbls: PRD tables for current DMA * @sgls: Array of pointers to scatter-gather lists + * @sgls_nent_pages: Number of pages per scatter-gather list * @sgls_nent: Actual number of entries per scatter-gather list * @prd_tbl_num: Actual number of PRD tables * @max_packet_size: Size of the buffer needed for 1 DMA message (1 PRD table) @@ -107,6 +108,7 @@ struct thc_dma_configuration { struct thc_prd_table *prd_tbls; struct scatterlist *sgls[PRD_TABLES_NUM]; + u8 sgls_nent_pages[PRD_TABLES_NUM]; u8 sgls_nent[PRD_TABLES_NUM]; u8 prd_tbl_num; From daeed86b686855adda79f13729e0c9b0530990be Mon Sep 17 00:00:00 2001 From: Zhang Lixu Date: Wed, 10 Dec 2025 10:53:28 +0800 Subject: [PATCH 04/21] HID: intel-ish-hid: Update ishtp bus match to support device ID table The ishtp_cl_bus_match() function previously only checked the first entry in the driver's device ID table. Update it to iterate over the entire table, allowing proper matching for drivers with multiple supported protocol GUIDs. Signed-off-by: Zhang Lixu Acked-by: Srinivas Pandruvada Signed-off-by: Benjamin Tissoires --- drivers/hid/intel-ish-hid/ishtp/bus.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c index c6ce37244e49..c3915f3a060e 100644 --- a/drivers/hid/intel-ish-hid/ishtp/bus.c +++ b/drivers/hid/intel-ish-hid/ishtp/bus.c @@ -240,9 +240,17 @@ static int ishtp_cl_bus_match(struct device *dev, const struct device_driver *dr { struct ishtp_cl_device *device = to_ishtp_cl_device(dev); struct ishtp_cl_driver *driver = to_ishtp_cl_driver(drv); + struct ishtp_fw_client *client = device->fw_client; + const struct ishtp_device_id *id; - return(device->fw_client ? guid_equal(&driver->id[0].guid, - &device->fw_client->props.protocol_name) : 0); + if (client) { + for (id = driver->id; !guid_is_null(&id->guid); id++) { + if (guid_equal(&id->guid, &client->props.protocol_name)) + return 1; + } + } + + return 0; } /** From 56e230723e3a818373bd62331bccb1c6d2b3881b Mon Sep 17 00:00:00 2001 From: Zhang Lixu Date: Fri, 12 Dec 2025 10:51:50 +0800 Subject: [PATCH 05/21] HID: intel-ish-hid: Reset enum_devices_done before enumeration Some systems have enabled ISH without any sensors. In this case sending HOSTIF_DM_ENUM_DEVICES results in 0 sensors. This triggers ISH hardware reset on subsequent enumeration after S3/S4 resume. The enum_devices_done flag was not reset before sending the HOSTIF_DM_ENUM_DEVICES command. On subsequent enumeration calls (such as after S3/S4 resume), this flag retains its previous true value, causing the wait loop to be skipped and returning prematurely to hid_ishtp_cl_init(). If 0 HID devices are found, hid_ishtp_cl_init() skips getting HID device descriptors and sets init_done to true. When the delayed enumeration response arrives with init_done already true, the driver treats it as a bad packet and triggers an ISH hardware reset. Set enum_devices_done to false before sending the enumeration command, consistent with similar functions like ishtp_get_hid_descriptor() and ishtp_get_report_descriptor() which reset their respective flags. Signed-off-by: Zhang Lixu Acked-by: Srinivas Pandruvada Signed-off-by: Benjamin Tissoires --- drivers/hid/intel-ish-hid/ishtp-hid-client.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/intel-ish-hid/ishtp-hid-client.c b/drivers/hid/intel-ish-hid/ishtp-hid-client.c index f37b3bc2bb7d..6d64008f2ce0 100644 --- a/drivers/hid/intel-ish-hid/ishtp-hid-client.c +++ b/drivers/hid/intel-ish-hid/ishtp-hid-client.c @@ -495,6 +495,7 @@ static int ishtp_enum_enum_devices(struct ishtp_cl *hid_ishtp_cl) int rv; /* Send HOSTIF_DM_ENUM_DEVICES */ + client_data->enum_devices_done = false; memset(&msg, 0, sizeof(struct hostif_msg)); msg.hdr.command = HOSTIF_DM_ENUM_DEVICES; rv = ishtp_cl_send(hid_ishtp_cl, (unsigned char *)&msg, From ff3f234ff1dcd6d626a989151db067a1b7f0f215 Mon Sep 17 00:00:00 2001 From: DaytonCL Date: Sun, 14 Dec 2025 14:34:36 +0100 Subject: [PATCH 06/21] HID: multitouch: add MT_QUIRK_STICKY_FINGERS to MT_CLS_VTL Some VTL-class touchpads (e.g. TOPS0102:00 35CC:0104) intermittently fail to release a finger contact. A previous slot remains logically active, accompanied by stale BTN_TOOL_DOUBLETAP state, causing gestures to stay latched and resulting in stuck two-finger scrolling and false right-clicks. Apply MT_QUIRK_STICKY_FINGERS to handle the unreleased contact correctly. Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/1225 Suggested-by: Benjamin Tissoires Tested-by: DaytonCL Signed-off-by: DaytonCL Signed-off-by: Benjamin Tissoires --- drivers/hid/hid-multitouch.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 179dc316b4b5..a0c1ad5acb67 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -393,6 +393,7 @@ static const struct mt_class mt_classes[] = { { .name = MT_CLS_VTL, .quirks = MT_QUIRK_ALWAYS_VALID | MT_QUIRK_CONTACT_CNT_ACCURATE | + MT_QUIRK_STICKY_FINGERS | MT_QUIRK_FORCE_GET_FEATURE, }, { .name = MT_CLS_GOOGLE, From f39006965dd37e7be823dba6ca484adccc7a4dff Mon Sep 17 00:00:00 2001 From: Even Xu Date: Fri, 19 Dec 2025 09:14:38 +0800 Subject: [PATCH 07/21] HID: Intel-thc-hid: Intel-thc: Fix wrong register reading Correct the read register for the setting of max input size and interrupt delay. Fixes: 22da60f0304b ("HID: Intel-thc-hid: Intel-thc: Introduce interrupt delay control") Fixes: 45e92a093099 ("HID: Intel-thc-hid: Intel-thc: Introduce max input size control") Signed-off-by: Even Xu Signed-off-by: Benjamin Tissoires --- drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c index 636a68306501..7e220a4c5ded 100644 --- a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c +++ b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c @@ -1593,7 +1593,7 @@ int thc_i2c_set_rx_max_size(struct thc_device *dev, u32 max_rx_size) if (!max_rx_size) return -EOPNOTSUPP; - ret = regmap_read(dev->thc_regmap, THC_M_PRT_SW_SEQ_STS_OFFSET, &val); + ret = regmap_read(dev->thc_regmap, THC_M_PRT_SPI_ICRRD_OPCODE_OFFSET, &val); if (ret) return ret; @@ -1662,7 +1662,7 @@ int thc_i2c_set_rx_int_delay(struct thc_device *dev, u32 delay_us) if (!delay_us) return -EOPNOTSUPP; - ret = regmap_read(dev->thc_regmap, THC_M_PRT_SW_SEQ_STS_OFFSET, &val); + ret = regmap_read(dev->thc_regmap, THC_M_PRT_SPI_ICRRD_OPCODE_OFFSET, &val); if (ret) return ret; From b7666c891cc7e1a157cd99bca737631c8be07504 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Tue, 6 Jan 2026 16:30:54 +0100 Subject: [PATCH 08/21] HID: bpf: fix bpf compilation with -fms-extensions Similar to commit 835a50753579 ("selftests/bpf: Add -fms-extensions to bpf build flags") and commit 639f58a0f480 ("bpftool: Fix build warnings due to MS extensions") The kernel is now built with -fms-extensions, therefore generated vmlinux.h contains types like: struct slab { .. struct freelist_counters; }; Use -fms-extensions and -Wno-microsoft-anon-tag flags to build bpf programs that #include "vmlinux.h" Signed-off-by: Benjamin Tissoires --- drivers/hid/bpf/progs/Makefile | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/hid/bpf/progs/Makefile b/drivers/hid/bpf/progs/Makefile index ec1fc642fd63..66b8f38e591d 100644 --- a/drivers/hid/bpf/progs/Makefile +++ b/drivers/hid/bpf/progs/Makefile @@ -56,8 +56,10 @@ clean: %.bpf.o: %.bpf.c vmlinux.h $(BPFOBJ) | $(OUTPUT) $(call msg,BPF,$@) - $(Q)$(CLANG) -g -O2 --target=bpf -Wall -Werror $(INCLUDES) \ - -c $(filter %.c,$^) -o $@ && \ + $(Q)$(CLANG) -g -O2 --target=bpf -Wall -Werror $(INCLUDES) \ + -Wno-microsoft-anon-tag \ + -fms-extensions \ + -c $(filter %.c,$^) -o $@ && \ $(LLVM_STRIP) -g $@ vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR) From e03fb369b083ab66d72fb63fe7817e933c3d4a30 Mon Sep 17 00:00:00 2001 From: Benjamin Tissoires Date: Tue, 6 Jan 2026 16:30:55 +0100 Subject: [PATCH 09/21] selftests/hid: fix bpf compilations due to -fms-extensions Similar to commit 835a50753579 ("selftests/bpf: Add -fms-extensions to bpf build flags") and commit 639f58a0f480 ("bpftool: Fix build warnings due to MS extensions") The kernel is now built with -fms-extensions, therefore generated vmlinux.h contains types like: struct slab { .. struct freelist_counters; }; Use -fms-extensions and -Wno-microsoft-anon-tag flags to build bpf programs that #include "vmlinux.h" Signed-off-by: Benjamin Tissoires --- tools/testing/selftests/hid/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/testing/selftests/hid/Makefile b/tools/testing/selftests/hid/Makefile index 2839d2612ce3..50ec9e0406ab 100644 --- a/tools/testing/selftests/hid/Makefile +++ b/tools/testing/selftests/hid/Makefile @@ -184,6 +184,8 @@ MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian) CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG)) BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) \ + -Wno-microsoft-anon-tag \ + -fms-extensions \ -I$(INCLUDE_DIR) CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \ From dd76788f9ec4f33f0f43838cac1304265d944328 Mon Sep 17 00:00:00 2001 From: Tim Zimmermann Date: Fri, 28 Nov 2025 08:54:22 +0100 Subject: [PATCH 10/21] hid: intel-thc-hid: Select SGL_ALLOC intel-thc-dma.c uses sgl_alloc() resulting in a build failure if CONFIG_SGL_ALLOC is not enabled Signed-off-by: Tim Zimmermann Reviewed-by: Even Xu Signed-off-by: Benjamin Tissoires --- drivers/hid/intel-thc-hid/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/intel-thc-hid/Kconfig b/drivers/hid/intel-thc-hid/Kconfig index 0351d1137607..9d74e53b8c62 100644 --- a/drivers/hid/intel-thc-hid/Kconfig +++ b/drivers/hid/intel-thc-hid/Kconfig @@ -7,6 +7,7 @@ menu "Intel THC HID Support" config INTEL_THC_HID tristate "Intel Touch Host Controller" depends on ACPI + select SGL_ALLOC help THC (Touch Host Controller) is the name of the IP block in PCH that interfaces with Touch Devices (ex: touchscreen, touchpad etc.). It From a9a917998d172ec117f9e9de1919174153c0ace4 Mon Sep 17 00:00:00 2001 From: Even Xu Date: Fri, 26 Dec 2025 11:39:53 +0800 Subject: [PATCH 11/21] HID: Intel-thc-hid: Intel-thc: Add safety check for reading DMA buffer Add DMA buffer readiness check before reading DMA buffer to avoid unexpected NULL pointer accessing. Signed-off-by: Even Xu Tested-by: Rui Zhang Signed-off-by: Benjamin Tissoires --- drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c index a0c368aa7979..6ee675e0a738 100644 --- a/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c +++ b/drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c @@ -575,6 +575,11 @@ static int read_dma_buffer(struct thc_device *dev, return -EINVAL; } + if (!read_config->prd_tbls || !read_config->sgls[prd_table_index]) { + dev_err_once(dev->dev, "PRD tables are not ready yet\n"); + return -EINVAL; + } + prd_tbl = &read_config->prd_tbls[prd_table_index]; mes_len = calc_message_len(prd_tbl, &nent); if (mes_len > read_config->max_packet_size) { From c06bc3557542307b9658fbd43cc946a14250347b Mon Sep 17 00:00:00 2001 From: Chris Chiu Date: Fri, 2 Jan 2026 06:56:43 +0000 Subject: [PATCH 12/21] HID: quirks: Add another Chicony HP 5MP Cameras to hid_ignore_list Another Chicony Electronics HP 5MP Camera with USB ID 04F2:B882 reports a HID sensor interface that is not actually implemented. Add the device to the HID ignore list so the bogus sensor is never exposed to userspace. Then the system won't hang when runtime PM tries to wake the unresponsive device. Signed-off-by: Chris Chiu Signed-off-by: Benjamin Tissoires --- drivers/hid/hid-ids.h | 1 + drivers/hid/hid-quirks.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index d31711f1aaec..e8a1a86313b7 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -317,6 +317,7 @@ #define USB_DEVICE_ID_CHICONY_ACER_SWITCH12 0x1421 #define USB_DEVICE_ID_CHICONY_HP_5MP_CAMERA 0xb824 #define USB_DEVICE_ID_CHICONY_HP_5MP_CAMERA2 0xb82c +#define USB_DEVICE_ID_CHICONY_HP_5MP_CAMERA3 0xb882 #define USB_VENDOR_ID_CHUNGHWAT 0x2247 #define USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH 0x0001 diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index c89a015686c0..3cf7971d4974 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -769,6 +769,7 @@ static const struct hid_device_id hid_ignore_list[] = { { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_HP_5MP_CAMERA) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_HP_5MP_CAMERA2) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_HP_5MP_CAMERA3) }, { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) }, From 2b29a90131bbb3d404e5bf5102af5ce98ccf96fe Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Mon, 22 Dec 2025 09:43:34 +1000 Subject: [PATCH 13/21] HID: multitouch: set INPUT_PROP_PRESSUREPAD based on Digitizer/Button Type A Digitizer/Button Type value of 1 indicates the device is a pressurepad, see https://learn.microsoft.com/en-us/windows-hardware/design/component-guidelines/touchpad-windows-precision-touchpad-collection#device-capabilities-feature-report Signed-off-by: Peter Hutterer Signed-off-by: Benjamin Tissoires --- drivers/hid/hid-multitouch.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index a0c1ad5acb67..b1c3ef129058 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -81,6 +81,7 @@ MODULE_LICENSE("GPL"); #define MT_INPUTMODE_TOUCHPAD 0x03 #define MT_BUTTONTYPE_CLICKPAD 0 +#define MT_BUTTONTYPE_PRESSUREPAD 1 enum latency_mode { HID_LATENCY_NORMAL = 0, @@ -179,6 +180,7 @@ struct mt_device { __u8 inputmode_value; /* InputMode HID feature value */ __u8 maxcontacts; bool is_buttonpad; /* is this device a button pad? */ + bool is_pressurepad; /* is this device a pressurepad? */ bool is_haptic_touchpad; /* is this device a haptic touchpad? */ bool serial_maybe; /* need to check for serial protocol */ @@ -531,8 +533,14 @@ static void mt_feature_mapping(struct hid_device *hdev, } mt_get_feature(hdev, field->report); - if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD) + switch (field->value[usage->usage_index]) { + case MT_BUTTONTYPE_CLICKPAD: td->is_buttonpad = true; + break; + case MT_BUTTONTYPE_PRESSUREPAD: + td->is_pressurepad = true; + break; + } break; case 0xff0000c5: @@ -1394,6 +1402,8 @@ static int mt_touch_input_configured(struct hid_device *hdev, if (td->is_buttonpad) __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); + if (td->is_pressurepad) + __set_bit(INPUT_PROP_PRESSUREPAD, input->propbit); app->pending_palm_slots = devm_kcalloc(&hi->input->dev, BITS_TO_LONGS(td->maxcontacts), From 1d6628f7f279131ac9efb743bcea7080666d7574 Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Mon, 22 Dec 2025 09:43:35 +1000 Subject: [PATCH 14/21] selftests/hid: require hidtools 0.12 Not all our tests really require it but since it's likely pip-installed anyway it's trivial to require the new version, just in case we want to start cleaning up other bits. Signed-off-by: Peter Hutterer Signed-off-by: Benjamin Tissoires --- tools/testing/selftests/hid/tests/conftest.py | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tools/testing/selftests/hid/tests/conftest.py b/tools/testing/selftests/hid/tests/conftest.py index 1361ec981db6..985a535324b2 100644 --- a/tools/testing/selftests/hid/tests/conftest.py +++ b/tools/testing/selftests/hid/tests/conftest.py @@ -5,6 +5,7 @@ # Copyright (c) 2017 Benjamin Tissoires # Copyright (c) 2017 Red Hat, Inc. +from packaging.version import Version import platform import pytest import re @@ -14,6 +15,19 @@ from .base import HIDTestUdevRule from pathlib import Path +@pytest.fixture(autouse=True) +def hidtools_version_check(): + HIDTOOLS_VERSION = "0.12" + try: + import hidtools + + version = hidtools.__version__ # type: ignore + if Version(version) < Version(HIDTOOLS_VERSION): + pytest.skip(reason=f"have hidtools {version}, require >={HIDTOOLS_VERSION}") + except Exception: + pytest.skip(reason=f"hidtools >={HIDTOOLS_VERSION} required") + + # See the comment in HIDTestUdevRule, this doesn't set up but it will clean # up once the last test exited. @pytest.fixture(autouse=True, scope="session") From 4f36fdab084fcbe9c34bb51889e4b8c06d98fbaa Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Mon, 22 Dec 2025 09:43:36 +1000 Subject: [PATCH 15/21] selftests/hid: use a enum class for the different button types Instead of multiple spellings of a string-provided argument, let's make this a tad more type-safe and use an enum here. And while we do this fix the two wrong devices: - elan_04f3_313a (HP ZBook Fury 15) is discrete button pad - dell_044e_1220 (Dell Precision 7740) is a discrete button pad Equivalent hid-tools commit https://gitlab.freedesktop.org/libevdev/hid-tools/-/commit/8300a55bf4213c6a252cab8cb5b34c9ddb191625 Signed-off-by: Peter Hutterer Signed-off-by: Benjamin Tissoires --- .../selftests/hid/tests/test_multitouch.py | 24 +++++++++++-------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/tools/testing/selftests/hid/tests/test_multitouch.py b/tools/testing/selftests/hid/tests/test_multitouch.py index ece0ba8e7d34..a06a087f00b6 100644 --- a/tools/testing/selftests/hid/tests/test_multitouch.py +++ b/tools/testing/selftests/hid/tests/test_multitouch.py @@ -9,6 +9,7 @@ from . import base from hidtools.hut import HUT from hidtools.util import BusType +import enum import libevdev import logging import pytest @@ -232,11 +233,17 @@ class Digitizer(base.UHIDTestDevice): return 0 +class HIDButtonType(enum.IntEnum): + CLICKPAD = 0 + PRESSUREPAD = 1 + DISCRETE_BUTTONS = 2 + + class PTP(Digitizer): def __init__( self, name, - type="Click Pad", + buttontype=HIDButtonType.CLICKPAD, rdesc_str=None, rdesc=None, application="Touch Pad", @@ -244,11 +251,8 @@ class PTP(Digitizer): max_contacts=None, input_info=None, ): - self.type = type.lower().replace(" ", "") - if self.type == "clickpad": - self.buttontype = 0 - else: # pressurepad - self.buttontype = 1 + self.buttontype = buttontype + self.clickpad_state = False self.left_state = False self.right_state = False @@ -983,7 +987,7 @@ class BaseTest: uhdev = self.uhdev evdev = uhdev.get_evdev() - if uhdev.type == "clickpad": + if uhdev.buttontype == HIDButtonType.CLICKPAD: r = uhdev.event(click=True) events = uhdev.next_sync_events() self.debug_reports(r, uhdev, events) @@ -1918,7 +1922,7 @@ class Testdell_044e_1220(BaseTest.TestPTP): def create_device(self): return PTP( "uhid test dell_044e_1220", - type="pressurepad", + buttontype=HIDButtonType.DISCRETE_BUTTONS, rdesc="05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 75 01 95 03 81 02 95 05 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 09 38 95 01 81 06 05 0c 0a 38 02 81 06 c0 c0 05 0d 09 05 a1 01 85 08 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 af 04 75 10 55 0e 65 11 09 30 35 00 46 e8 03 95 01 81 02 26 7b 02 46 12 02 09 31 81 02 c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 05 0d 09 56 81 02 09 54 25 05 95 01 75 08 81 02 05 09 19 01 29 03 25 01 75 01 95 03 81 02 95 05 81 03 05 0d 85 09 09 55 75 08 95 01 25 05 b1 02 06 00 ff 85 0a 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 01 ff 09 01 a1 01 85 03 09 01 15 00 26 ff 00 95 1b 81 02 85 04 09 02 95 50 81 02 85 05 09 03 95 07 b1 02 85 06 09 04 81 02 c0 06 02 ff 09 01 a1 01 85 07 09 02 95 86 75 08 b1 02 c0 05 0d 09 0e a1 01 85 0b 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 0c 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0", ) @@ -2018,7 +2022,7 @@ class Testelan_04f3_313a(BaseTest.TestPTP): def create_device(self): return PTP( "uhid test elan_04f3_313a", - type="touchpad", + buttontype=HIDButtonType.DISCRETE_BUTTONS, input_info=(BusType.I2C, 0x04F3, 0x313A), rdesc="05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 75 01 95 03 81 02 95 05 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 75 08 95 05 81 03 c0 06 00 ff 09 01 85 0e 09 c5 15 00 26 ff 00 75 08 95 04 b1 02 85 0a 09 c6 15 00 26 ff 00 75 08 95 04 b1 02 c0 06 00 ff 09 01 a1 01 85 5c 09 01 95 0b 75 08 81 06 85 0d 09 c5 15 00 26 ff 00 75 08 95 04 b1 02 85 0c 09 c6 96 80 03 75 08 b1 02 85 0b 09 c7 95 82 75 08 b1 02 c0 05 0d 09 05 a1 01 85 04 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 05 09 09 02 09 03 15 00 25 01 75 01 95 02 81 02 05 0d 95 01 75 04 25 0f 09 51 81 02 05 01 15 00 26 d7 0e 75 10 55 0d 65 11 09 30 35 00 46 44 2f 95 01 81 02 46 12 16 26 eb 06 26 eb 06 09 31 81 02 05 0d 15 00 25 64 95 03 c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 25 01 75 01 95 08 81 03 09 c5 75 08 95 02 81 03 05 0d 85 02 09 55 09 59 75 04 95 02 25 0f b1 02 85 07 09 60 75 01 95 01 15 00 25 01 b1 02 95 0f b1 03 06 00 ff 06 00 ff 85 06 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 03 09 22 a1 00 09 52 15 00 25 0a 75 10 95 01 b1 02 c0 09 22 a1 00 85 05 09 57 09 58 75 01 95 02 25 01 b1 02 95 0e b1 03 c0 c0 05 01 09 02 a1 01 85 2a 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 75 01 95 03 81 02 95 05 81 03 05 01 09 30 09 31 15 81 25 7f 35 81 45 7f 55 00 65 13 75 08 95 02 81 06 75 08 95 05 81 03 c0 c0", ) @@ -2110,7 +2114,7 @@ class Testsipodev_0603_0002(BaseTest.TestPTP): def create_device(self): return PTP( "uhid test sipodev_0603_0002", - type="clickpad", + buttontype=HIDButtonType.CLICKPAD, rdesc="05 01 09 02 a1 01 85 03 09 01 a1 00 05 09 19 01 29 02 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 80 25 7f 75 08 95 02 81 06 c0 c0 05 0d 09 05 a1 01 85 04 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 75 01 95 02 81 03 95 01 75 04 25 05 09 51 81 02 05 01 15 00 26 44 0a 75 0c 55 0e 65 11 09 30 35 00 46 ac 03 95 01 81 02 46 fe 01 26 34 05 75 0c 09 31 81 02 05 0d c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 0a 95 01 75 04 81 02 75 01 95 03 81 03 05 09 09 01 25 01 75 01 95 01 81 02 05 0d 85 0a 09 55 09 59 75 04 95 02 25 0f b1 02 85 0b 09 60 75 01 95 01 15 00 25 01 b1 02 95 07 b1 03 85 09 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 06 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 07 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0 05 01 09 0c a1 01 85 08 15 00 25 01 09 c6 75 01 95 01 81 06 75 07 81 03 c0 05 01 09 80 a1 01 85 01 15 00 25 01 75 01 0a 81 00 0a 82 00 0a 83 00 95 03 81 06 95 05 81 01 c0 06 0c 00 09 01 a1 01 85 02 25 01 15 00 75 01 0a b5 00 0a b6 00 0a b7 00 0a cd 00 0a e2 00 0a a2 00 0a e9 00 0a ea 00 95 08 81 02 0a 83 01 0a 6f 00 0a 70 00 0a 88 01 0a 8a 01 0a 92 01 0a a8 02 0a 24 02 95 08 81 02 0a 21 02 0a 23 02 0a 96 01 0a 25 02 0a 26 02 0a 27 02 0a 23 02 0a b1 02 95 08 81 02 c0 06 00 ff 09 01 a1 01 85 05 15 00 26 ff 00 19 01 29 02 75 08 95 05 b1 02 c0", ) From f287ba5951a4b3a47305b64a3fcde5d0911adb9b Mon Sep 17 00:00:00 2001 From: Peter Hutterer Date: Mon, 22 Dec 2025 09:43:37 +1000 Subject: [PATCH 16/21] selftests/hid: add a test for the Digitizer/Button Type pressurepad We have to resort to a bit of a hack: python-libevdev gets the properties from libevdev at module init time. If libevdev hasn't been rebuilt with the new property it won't be automatically populated. So we hack around this by constructing the property manually. Signed-off-by: Peter Hutterer Signed-off-by: Benjamin Tissoires --- .../selftests/hid/tests/test_multitouch.py | 39 +++++++++++++++++-- 1 file changed, 35 insertions(+), 4 deletions(-) diff --git a/tools/testing/selftests/hid/tests/test_multitouch.py b/tools/testing/selftests/hid/tests/test_multitouch.py index a06a087f00b6..fa4fb2054bd4 100644 --- a/tools/testing/selftests/hid/tests/test_multitouch.py +++ b/tools/testing/selftests/hid/tests/test_multitouch.py @@ -979,15 +979,36 @@ class BaseTest: assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_ORIENTATION, 90) in events class TestPTP(TestWin8Multitouch): + def test_buttontype(self): + """Check for the right ButtonType.""" + uhdev = self.uhdev + assert uhdev is not None + evdev = uhdev.get_evdev() + + # If libevdev.so is not yet compiled with INPUT_PROP_PRESSUREPAD + # python-libevdev won't have it either, let's fake it + if not getattr(libevdev, "INPUT_PROP_PRESSUREPAD", None): + prop = libevdev.InputProperty(name="INPUT_PROP_PRESSUREPAD", value=0x7) + libevdev.INPUT_PROP_PRESSUREPAD = prop + libevdev.props.append(prop) + + if uhdev.buttontype == HIDButtonType.CLICKPAD: + assert libevdev.INPUT_PROP_BUTTONPAD in evdev.properties + elif uhdev.buttontype == HIDButtonType.PRESSUREPAD: + assert libevdev.INPUT_PROP_PRESSUREPAD in evdev.properties + else: + assert libevdev.INPUT_PROP_PRESSUREPAD not in evdev.properties + assert libevdev.INPUT_PROP_BUTTONPAD not in evdev.properties + def test_ptp_buttons(self): """check for button reliability. - There are 2 types of touchpads: the click pads and the pressure pads. - Each should reliably report the BTN_LEFT events. + There are 3 types of touchpads: click pads + pressure pads and + those with discrete buttons. Each should reliably report the BTN_LEFT events. """ uhdev = self.uhdev evdev = uhdev.get_evdev() - if uhdev.buttontype == HIDButtonType.CLICKPAD: + if uhdev.buttontype in [HIDButtonType.CLICKPAD, HIDButtonType.PRESSUREPAD]: r = uhdev.event(click=True) events = uhdev.next_sync_events() self.debug_reports(r, uhdev, events) @@ -999,7 +1020,7 @@ class BaseTest: self.debug_reports(r, uhdev, events) assert libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 0) in events assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 0 - else: + elif uhdev.buttontype == HIDButtonType.DISCRETE_BUTTONS: r = uhdev.event(left=True) events = uhdev.next_sync_events() self.debug_reports(r, uhdev, events) @@ -2062,6 +2083,16 @@ class Testite_06cb_2968(BaseTest.TestPTP): ) +class Testven_0488_108c(BaseTest.TestPTP): + def create_device(self): + return PTP( + "uhid test ven_0488_108c", + rdesc="05 01 09 02 a1 01 85 06 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 03 05 01 09 30 09 31 09 38 15 81 25 7f 75 08 95 03 81 06 c0 c0 05 0d 09 05 a1 01 85 01 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 81 03 05 01 15 00 26 ba 0d 75 10 55 0e 65 11 09 30 35 00 46 d0 05 95 01 81 02 26 d0 06 46 bb 02 09 31 81 02 05 0d 95 01 75 10 26 ff 7f 46 ff 7f 09 30 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 81 03 05 01 15 00 26 ba 0d 75 10 55 0e 65 11 09 30 35 00 46 d0 05 95 01 81 02 26 d0 06 46 bb 02 09 31 81 02 05 0d 95 01 75 10 26 ff 7f 46 ff 7f 09 30 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 81 03 05 01 15 00 26 ba 0d 75 10 55 0e 65 11 09 30 35 00 46 d0 05 95 01 81 02 26 d0 06 46 bb 02 09 31 81 02 05 0d 95 01 75 10 26 ff 7f 46 ff 7f 09 30 81 02 c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 05 0d 09 56 81 02 09 54 25 05 95 01 75 08 81 02 05 09 09 01 25 01 75 01 95 01 81 02 95 07 81 03 05 0d 85 02 09 55 75 08 95 01 25 05 b1 02 09 59 b1 02 06 00 ff 85 03 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 05 0e 09 01 a1 02 85 13 09 23 15 00 25 64 75 08 95 01 b1 02 c0 c0 05 0d 09 0e a1 01 85 04 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 05 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0 06 01 ff 09 02 a1 01 09 00 85 07 15 00 26 ff 00 75 08 96 12 02 b1 02 c0 06 00 ff 09 01 a1 01 85 0d 15 00 26 ff 00 75 08 95 11 09 01 81 02 09 01 91 02 c0 05 0e 09 01 a1 01 85 11 09 35 15 00 26 ff 00 75 08 95 17 b1 02 c0 06 81 ff 09 01 a1 01 09 20 85 17 15 00 26 ff 00 75 08 95 3f 09 01 81 02 09 01 91 02 c0", + input_info=(0x18, 0x0488, 0x108C), + buttontype=HIDButtonType.PRESSUREPAD, + ) + + class Testn_trig_1b96_0c01(BaseTest.TestWin8Multitouch): def create_device(self): return Digitizer( From 2497ff38c530b1af0df5130ca9f5ab22c5e92f29 Mon Sep 17 00:00:00 2001 From: Kwok Kin Ming Date: Thu, 1 Jan 2026 02:18:26 +0800 Subject: [PATCH 17/21] HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report() `i2c_hid_xfer` is used to read `recv_len + sizeof(__le16)` bytes of data into `ihid->rawbuf`. The former can come from the userspace in the hidraw driver and is only bounded by HID_MAX_BUFFER_SIZE(16384) by default (unless we also set `max_buffer_size` field of `struct hid_ll_driver` which we do not). The latter has size determined at runtime by the maximum size of different report types you could receive on any particular device and can be a much smaller value. Fix this by truncating `recv_len` to `ihid->bufsize - sizeof(__le16)`. The impact is low since access to hidraw devices requires root. Signed-off-by: Kwok Kin Ming Signed-off-by: Benjamin Tissoires --- drivers/hid/i2c-hid/i2c-hid-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index 63f46a2e5788..5a183af3d5c6 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -286,6 +286,7 @@ static int i2c_hid_get_report(struct i2c_hid *ihid, * In addition to report data device will supply data length * in the first 2 bytes of the response, so adjust . */ + recv_len = min(recv_len, ihid->bufsize - sizeof(__le16)); error = i2c_hid_xfer(ihid, ihid->cmdbuf, length, ihid->rawbuf, recv_len + sizeof(__le16)); if (error) { From 85a866809333cd2bf8ddac93d9a3e3ba8e4f807d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rodrigo=20Lugathe=20da=20Concei=C3=A7=C3=A3o=20Alves?= Date: Thu, 27 Nov 2025 19:03:57 -0300 Subject: [PATCH 18/21] HID: Apply quirk HID_QUIRK_ALWAYS_POLL to Edifier QR30 (2d99:a101) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The USB speaker has a bug that causes it to reboot when changing the brightness using the physical knob. Add a new vendor and product ID entry in hid-ids.h, and register the corresponding device in hid-quirks.c with the required quirk. Signed-off-by: Rodrigo Lugathe da Conceição Alves Reviewed-by: Terry Junge Signed-off-by: Jiri Kosina --- drivers/hid/hid-ids.h | 3 +++ drivers/hid/hid-quirks.c | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index e8a1a86313b7..10cb1bc717c1 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -439,6 +439,9 @@ #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001 0xa001 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_C002 0xc002 +#define USB_VENDOR_ID_EDIFIER 0x2d99 +#define USB_DEVICE_ID_EDIFIER_QR30 0xa101 /* EDIFIER Hal0 2.0 SE */ + #define USB_VENDOR_ID_ELAN 0x04f3 #define USB_DEVICE_ID_TOSHIBA_CLICK_L9W 0x0401 #define USB_DEVICE_ID_HP_X2 0x074d diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index 3cf7971d4974..d6e42125d918 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -81,6 +81,7 @@ static const struct hid_device_id hid_quirks[] = { { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_PS3), HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU), HID_QUIRK_MULTI_INPUT }, { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER), HID_QUIRK_MULTI_INPUT | HID_QUIRK_NOGET }, + { HID_USB_DEVICE(USB_VENDOR_ID_EDIFIER, USB_DEVICE_ID_EDIFIER_QR30), HID_QUIRK_ALWAYS_POLL }, { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, HID_ANY_ID), HID_QUIRK_ALWAYS_POLL }, { HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700), HID_QUIRK_NOGET }, { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II), HID_QUIRK_MULTI_INPUT }, From c7fabe4ad9219866c203164a214c474c95b36bf2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ren=C3=A9=20Rebe?= Date: Fri, 28 Nov 2025 13:46:41 +0100 Subject: [PATCH 19/21] HID: quirks: work around VID/PID conflict for appledisplay MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For years I wondered why the Apple Cinema Display driver would not just work for me. Turns out the hidraw driver instantly takes it over. Fix by adding appledisplay VID/PIDs to hid_have_special_driver. Fixes: 069e8a65cd79 ("Driver for Apple Cinema Display") Signed-off-by: René Rebe Signed-off-by: Jiri Kosina --- drivers/hid/hid-quirks.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index d6e42125d918..31b2a5d1cd98 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -233,6 +233,15 @@ static const struct hid_device_id hid_quirks[] = { * used as a driver. See hid_scan_report(). */ static const struct hid_device_id hid_have_special_driver[] = { +#if IS_ENABLED(CONFIG_APPLEDISPLAY) + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x9218) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x9219) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x921c) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x921d) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x9222) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x9226) }, + { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x9236) }, +#endif #if IS_ENABLED(CONFIG_HID_A4TECH) { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, From 12adb969658ec39265eb8c7ea9e1856867fb9ceb Mon Sep 17 00:00:00 2001 From: Arnoud Willemsen Date: Sun, 7 Dec 2025 03:43:19 +0100 Subject: [PATCH 20/21] HID: Elecom: Add support for ELECOM M-XT3DRBK (018C) Wireless/new version of the Elecom trackball mouse M-XT3DRBK has a product id that differs from the existing M-XT3DRBK. The report descriptor format also seems to have changed and matches other (newer?) models instead (except for six buttons instead of eight). This patch follows the same format as the patch for the M-XT3URBK (018F) by Naoki Ueki (Nov 3rd 2025) to enable the sixth mouse button. dmesg output: [ 292.074664] usb 1-2: new full-speed USB device number 7 using xhci_hcd [ 292.218667] usb 1-2: New USB device found, idVendor=056e, idProduct=018c, bcdDevice= 1.00 [ 292.218676] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 292.218679] usb 1-2: Product: ELECOM TrackBall Mouse [ 292.218681] usb 1-2: Manufacturer: ELECOM usbhid-dump output: 001:006:000:DESCRIPTOR 1765072638.050578 05 01 09 02 A1 01 09 01 A1 00 85 01 05 09 19 01 29 05 15 00 25 01 95 08 75 01 81 02 95 01 75 00 81 01 05 01 09 30 09 31 16 00 80 26 FF 7F 75 10 95 02 81 06 C0 A1 00 05 01 09 38 15 81 25 7F 75 08 95 01 81 06 C0 A1 00 05 0C 0A 38 02 95 01 75 08 15 81 25 7F 81 06 C0 C0 06 01 FF 09 00 A1 01 85 02 09 00 15 00 26 FF 00 75 08 95 07 81 02 C0 05 0C 09 01 A1 01 85 05 15 00 26 3C 02 19 00 2A 3C 02 75 10 95 01 81 00 C0 05 01 09 80 A1 01 85 03 19 81 29 83 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 01 C0 06 BC FF 09 88 A1 01 85 04 95 01 75 08 15 00 26 FF 00 19 00 2A FF 00 81 00 C0 06 02 FF 09 02 A1 01 85 06 09 02 15 00 26 FF 00 75 08 95 07 B1 02 C0 Signed-off-by: Arnoud Willemsen Signed-off-by: Jiri Kosina --- drivers/hid/hid-elecom.c | 15 +++++++++++++-- drivers/hid/hid-ids.h | 3 ++- drivers/hid/hid-quirks.c | 3 ++- 3 files changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/hid/hid-elecom.c b/drivers/hid/hid-elecom.c index 981d1b6e9658..2003d2dcda7c 100644 --- a/drivers/hid/hid-elecom.c +++ b/drivers/hid/hid-elecom.c @@ -77,7 +77,7 @@ static const __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc, break; case USB_DEVICE_ID_ELECOM_M_XT3URBK_00FB: case USB_DEVICE_ID_ELECOM_M_XT3URBK_018F: - case USB_DEVICE_ID_ELECOM_M_XT3DRBK: + case USB_DEVICE_ID_ELECOM_M_XT3DRBK_00FC: case USB_DEVICE_ID_ELECOM_M_XT4DRBK: /* * Report descriptor format: @@ -102,6 +102,16 @@ static const __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc, */ mouse_button_fixup(hdev, rdesc, *rsize, 12, 30, 14, 20, 8); break; + case USB_DEVICE_ID_ELECOM_M_XT3DRBK_018C: + /* + * Report descriptor format: + * 22: button bit count + * 30: padding bit count + * 24: button report size + * 16: button usage maximum + */ + mouse_button_fixup(hdev, rdesc, *rsize, 22, 30, 24, 16, 6); + break; case USB_DEVICE_ID_ELECOM_M_DT2DRBK: case USB_DEVICE_ID_ELECOM_M_HT1DRBK_011C: /* @@ -122,7 +132,8 @@ static const struct hid_device_id elecom_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XGL20DLBK) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK_00FB) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK_018F) }, - { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) }, + { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK_00FC) }, + { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK_018C) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 10cb1bc717c1..9c2bf584d9f6 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -455,7 +455,8 @@ #define USB_DEVICE_ID_ELECOM_M_XGL20DLBK 0x00e6 #define USB_DEVICE_ID_ELECOM_M_XT3URBK_00FB 0x00fb #define USB_DEVICE_ID_ELECOM_M_XT3URBK_018F 0x018f -#define USB_DEVICE_ID_ELECOM_M_XT3DRBK 0x00fc +#define USB_DEVICE_ID_ELECOM_M_XT3DRBK_00FC 0x00fc +#define USB_DEVICE_ID_ELECOM_M_XT3DRBK_018C 0x018c #define USB_DEVICE_ID_ELECOM_M_XT4DRBK 0x00fd #define USB_DEVICE_ID_ELECOM_M_DT1URBK 0x00fe #define USB_DEVICE_ID_ELECOM_M_DT1DRBK 0x00ff diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c index 31b2a5d1cd98..11438039cdb7 100644 --- a/drivers/hid/hid-quirks.c +++ b/drivers/hid/hid-quirks.c @@ -422,7 +422,8 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XGL20DLBK) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK_00FB) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3URBK_018F) }, - { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK) }, + { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK_00FC) }, + { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT3DRBK_018C) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_XT4DRBK) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1URBK) }, { HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_M_DT1DRBK) }, From d7f6629bffdcb962d383ef8c9a30afef81e997fe Mon Sep 17 00:00:00 2001 From: Dennis Marttinen Date: Sun, 4 Jan 2026 13:00:51 +0000 Subject: [PATCH 21/21] HID: logitech: add HID++ support for Logitech MX Anywhere 3S I've acquired a Logitech MX Anywhere 3S mouse, which supports HID++ over Bluetooth. Adding its PID 0xb037 to the allowlist enables the additional features, such as high-resolution scrolling. Tested working across multiple machines, with a mix of Intel and Mediatek Bluetooth chips. [jkosina@suse.com: standardize shortlog] Signed-off-by: Dennis Marttinen Signed-off-by: Jiri Kosina --- drivers/hid/hid-logitech-hidpp.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index d5011a5d0890..e871f1729d4b 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -4662,6 +4662,8 @@ static const struct hid_device_id hidpp_devices[] = { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb025) }, { /* MX Master 3S mouse over Bluetooth */ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb034) }, + { /* MX Anywhere 3S mouse over Bluetooth */ + HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb037) }, { /* MX Anywhere 3SB mouse over Bluetooth */ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, 0xb038) }, {}