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authorHans de Goede <hdegoede@redhat.com>2018-01-17 21:05:55 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-02-17 13:21:18 +0100
commitdf9658e806052cb9f2b0f9bbfb2aaac5bc9e9993 (patch)
tree58b1b44938f90903af20f3220196aa28ad3e04d0
parent71baf27d8c2b3db340e07412756093474be90883 (diff)
HID: quirks: Fix keyboard + touchpad on Toshiba Click Mini not working
commit edfc3722cfef4217c7fe92b272cbe0288ba1ff57 upstream. The Toshiba Click Mini uses an i2c attached keyboard/touchpad combo (single i2c_hid device for both) which has a vid:pid of 04F3:0401, which is also used by a bunch of Elan touchpads which are handled by the drivers/input/mouse/elan_i2c driver, but that driver deals with pure touchpads and does not work for a combo device such as the one on the Toshiba Click Mini. The combo on the Mini has an ACPI id of ELAN0800, which is not claimed by the elan_i2c driver, so check for that and if it is found do not ignore the device. This fixes the keyboard/touchpad combo on the Mini not working (although with the touchpad in mouse emulation mode). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/hid/hid-core.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e32862ca5223..03cac5731afc 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2365,7 +2365,6 @@ static const struct hid_device_id hid_ignore_list[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0400) },
- { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0401) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
@@ -2635,6 +2634,17 @@ bool hid_ignore(struct hid_device *hdev)
strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
return true;
break;
+ case USB_VENDOR_ID_ELAN:
+ /*
+ * Many Elan devices have a product id of 0x0401 and are handled
+ * by the elan_i2c input driver. But the ACPI HID ELAN0800 dev
+ * is not (and cannot be) handled by that driver ->
+ * Ignore all 0x0401 devs except for the ELAN0800 dev.
+ */
+ if (hdev->product == 0x0401 &&
+ strncmp(hdev->name, "ELAN0800", 8) != 0)
+ return true;
+ break;
}
if (hdev->type == HID_TYPE_USBMOUSE &&