HID: input: Fix Apple Magic Trackpad 1 Bluetooth disconnect

When connecting the Trackpad 1 via any bluetooth adapter, the device
disconnects whenever the battery level is queried. It reconnects
again after a few seconds, but it's an incredibly jarring experience
since it will just cut out in the middle of mouse operations.

This patch ignores querying the battery and avoids disconnects.

This bug is reported here:

- https://bugzilla.kernel.org/show_bug.cgi?id=204589
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834085

It looks like a similar approach (disabling battery checking)
was also suggested for the Apple Magic Mouse before a custom
driver was created:

https://bugzilla.kernel.org/show_bug.cgi?id=103631
Signed-off-by: Nimish Gåtam <nimishg@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 851ee86eff32a4085e9a640620c8ea9a5e2211c8..96659a7fb4634c2b51e648f8191e234fd0c3b88b 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -358,6 +358,9 @@ static const struct hid_device_id hid_battery_quirks[] = {
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
                USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
          HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
+       { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+               USB_DEVICE_ID_APPLE_MAGICTRACKPAD),
+         HID_BATTERY_QUIRK_IGNORE },
        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
                USB_DEVICE_ID_ELECOM_BM084),
          HID_BATTERY_QUIRK_IGNORE },