linux-kernel - [PATCH v2 1/2] leds: qnap-mcu: fix state numbering for usb LED

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Message-ID: <20250804114949.3127417-2-heiko@sntech.de>
Date: Mon,  4 Aug 2025 13:49:48 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: lee@...nel.org,
	pavel@...nel.org
Cc: heiko@...ech.de,
	linux-leds@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/2] leds: qnap-mcu: fix state numbering for usb LED

The "@Cx" commands span a number of different functions, from the status
and usb LEDs to the buzzer and power button.

So change the usb-LED enum to start at 0 and adapt the offset accordingly
to not suggest @CD would relate to the usb-LED - while in fact "@CD" is a
state of the status LED.

Signed-off-by: Heiko Stuebner <heiko@...ech.de>
---
 drivers/leds/leds-qnap-mcu.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/leds/leds-qnap-mcu.c b/drivers/leds/leds-qnap-mcu.c
index 4e4709456261..fe055c5511b8 100644
--- a/drivers/leds/leds-qnap-mcu.c
+++ b/drivers/leds/leds-qnap-mcu.c
@@ -104,9 +104,9 @@ static int qnap_mcu_register_err_led(struct device *dev, struct qnap_mcu *mcu, i
 }
 
 enum qnap_mcu_usb_led_mode {
-	QNAP_MCU_USB_LED_ON = 1,
-	QNAP_MCU_USB_LED_OFF = 3,
-	QNAP_MCU_USB_LED_BLINK = 2,
+	QNAP_MCU_USB_LED_ON = 0,
+	QNAP_MCU_USB_LED_OFF = 2,
+	QNAP_MCU_USB_LED_BLINK = 1,
 };
 
 struct qnap_mcu_usb_led {
@@ -137,7 +137,7 @@ static int qnap_mcu_usb_led_set(struct led_classdev *led_cdev,
 	 * Byte 3 is shared between the usb led target on/off/blink
 	 * and also the buzzer control (in the input driver)
 	 */
-	cmd[2] = 'D' + usb_led->mode;
+	cmd[2] = 'E' + usb_led->mode;
 
 	return qnap_mcu_exec_with_ack(usb_led->mcu, cmd, sizeof(cmd));
 }
@@ -161,7 +161,7 @@ static int qnap_mcu_usb_led_blink_set(struct led_classdev *led_cdev,
 	 * Byte 3 is shared between the USB LED target on/off/blink
 	 * and also the buzzer control (in the input driver)
 	 */
-	cmd[2] = 'D' + usb_led->mode;
+	cmd[2] = 'E' + usb_led->mode;
 
 	return qnap_mcu_exec_with_ack(usb_led->mcu, cmd, sizeof(cmd));
 }
-- 
2.47.2