[PATCH] Add a quirk for a Cirque I2C device.
From: Vadim Klishko <hidden>
Date: 2026-07-03 14:47:46
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
Cirque touchpads with PID D0C1 generate an error when probed by the I2C HID driver, resulting in no hidraw device created. Signed-off-by: Vadim Klishko <redacted> --- drivers/hid/hid-ids.h | 1 + drivers/hid/i2c-hid/i2c-hid-core.c | 2 ++ 2 files changed, 3 insertions(+)
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 1059922baaac..496589277bd5 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h@@ -334,6 +334,7 @@ #define I2C_VENDOR_ID_CIRQUE 0x0488 #define I2C_PRODUCT_ID_CIRQUE_1063 0x1063 +#define I2C_PRODUCT_ID_CIRQUE_D0C1 0xD0C1 #define USB_VENDOR_ID_CJTOUCH 0x24b8 #define USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020 0x0020
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index 3adb16366e93..63004bcbfa71 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c@@ -136,6 +136,8 @@ static const struct i2c_hid_quirks { I2C_HID_QUIRK_BAD_INPUT_SIZE }, { I2C_VENDOR_ID_CIRQUE, I2C_PRODUCT_ID_CIRQUE_1063, I2C_HID_QUIRK_NO_SLEEP_ON_SUSPEND }, + { I2C_VENDOR_ID_CIRQUE, I2C_PRODUCT_ID_CIRQUE_D0C1, + I2C_HID_QUIRK_NO_IRQ_AFTER_RESET }, /* * Without additional power on command, at least some QTEC devices send garbage */
--
2.34.1