usb: device: fix CDC ACM serial state notification for Rx Carrier

Zagarooth · kartben · commit 27e5a8fcf51c · 2025-09-05T17:11:16.000+02:00
Use the actual value instead of the flag.

Signed-off-by: Øyvind Hagen &lt;oyvinha@ifi.uio.no&gt;
diff --git a/subsys/usb/device/class/cdc_acm.c b/subsys/usb/device/class/cdc_acm.c
@@ -823,7 +823,7 @@ static int cdc_acm_line_ctrl_set(const struct device *dev,
 		if (val) {
 			dev_data->serial_state |= SERIAL_STATE_RX_CARRIER;
 		}
-		cdc_acm_send_notification(dev, SERIAL_STATE_RX_CARRIER);
+		cdc_acm_send_notification(dev, dev_data->serial_state);
 		return 0;
 	case USB_CDC_LINE_CTRL_DSR:
 		dev_data->serial_state &= ~SERIAL_STATE_TX_CARRIER;

Original file line number	Diff line number	Diff line change
`@@ -823,7 +823,7 @@ static int cdc_acm_line_ctrl_set(const struct device *dev,`
`823`	`823`	`if (val) {`
`824`	`824`	`dev_data->serial_state \|= SERIAL_STATE_RX_CARRIER;`
`825`	`825`	`}`
`826`		`- cdc_acm_send_notification(dev, SERIAL_STATE_RX_CARRIER);`
	`826`	`+ cdc_acm_send_notification(dev, dev_data->serial_state);`
`827`	`827`	`return 0;`
`828`	`828`	`case USB_CDC_LINE_CTRL_DSR:`
`829`	`829`	`dev_data->serial_state &= ~SERIAL_STATE_TX_CARRIER;`