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[1/1] HID: apple: Report Magic Keyboard 2021 with fingerprint reader battery over USB

Message ID 20220102170447.159959-2-jose.exposito89@gmail.com
State Accepted
Commit cbfcfbfc384890a062a5d0cc4792df094a6cc7a8
Headers show
Series [1/1] HID: apple: Report Magic Keyboard 2021 with fingerprint reader battery over USB | expand

Commit Message

José Expósito Jan. 2, 2022, 5:04 p.m. UTC 
Like the Apple Magic Keyboard 2015, when connected over USB, the 2021
version with fingerprint reader registers 2 different interfaces. One of
them is used to report the battery level.

However, unlike when connected over Bluetooth, the battery level is not
reported automatically and it is required to fetch it manually.

Add the APPLE_RDESC_BATTERY quirk to fix the battery report descriptor
and manually fetch the battery level.

Tested with the ANSI variant of the keyboard with and without numpad.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
---
 drivers/hid/hid-apple.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index e40cd17c7f40..8054a130fc91 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -723,11 +723,11 @@  static const struct hid_device_id apple_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021),
 		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
-		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
 	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021),
 		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
-		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },
+		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY },
 	{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021),
 		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },