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HID: quirks: Fix keyboard + touchpad on Toshiba Click Mini not working 

commit edfc3722cf 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>
steinar/wifi_calib_4_9_kernel
Hans de Goede 2018-01-17 21:05:55 +01:00 committed by Greg Kroah-Hartman
parent 71baf27d8c
commit df9658e806
1 changed files with 11 additions and 1 deletions
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12
drivers/hid/hid-core.c
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@ -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 &&