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[-next] HID: apple: Report Magic Keyboard 2021 battery over USB

Message ID 20220102161418.143775-1-jose.exposito89@gmail.com (mailing list archive)
State Superseded
Delegated to: Jiri Kosina
Headers show
Series [-next] HID: apple: Report Magic Keyboard 2021 battery over USB | expand

Commit Message

José Expósito Jan. 2, 2022, 4:14 p.m. UTC 
Like the Apple Magic Keyboard 2015, when connected over USB, the 2021
version 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, ISO and JIS variants of the keyboard.

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

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 2bd8276411e0..afbee7c3b2e1 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -719,7 +719,7 @@  static const struct hid_device_id apple_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY),
 		.driver_data = APPLE_NUMLOCK_EMULATION | APPLE_HAS_FN },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_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_2021),
 		.driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },