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From: "José Expósito" <jose.exposito89@gmail.com>
To: jikos@kernel.org
Cc: benjamin.tissoires@redhat.com, rydberg@bitmath.org,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	alexhenrie24@gmail.com,
	"José Expósito" <jose.exposito89@gmail.com>
Subject: [PATCH 1/1] HID: apple: Report Magic Keyboard 2021 with fingerprint reader battery over USB
Date: Sun,  2 Jan 2022 18:04:47 +0100	[thread overview]
Message-ID: <20220102170447.159959-2-jose.exposito89@gmail.com> (raw)
In-Reply-To: <20220102170447.159959-1-jose.exposito89@gmail.com>

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(-)

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 },
 
-- 
2.25.1


      reply	other threads:[~2022-01-02 17:05 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-02 17:04 [PATCH 0/1] Magic Keyboard 2021 with fingerprint reader USB battery José Expósito
2022-01-02 17:04 ` José Expósito [this message]

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