Commit a0a3202b authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: cdc: add serial-state defines 



Add defines for the serial-state bitmap values from section 6.3.5
SerialState of the CDC specification version 1.1.

Note that the bTxCarrier and bRxCarrier bits have been named after their
RS-232 signal equivalents DSR and DCD.

Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20220725075841.1187-3-johan@kernel.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b4023554

include/uapi/linux/usb/cdc.h

+9 −0
Original line number Diff line number Diff line
@@ -306,6 +306,15 @@ struct usb_cdc_notification { 
	__le16	wLength;

} __attribute__ ((packed));



/* UART State Bitmap Values from 6.3.5 SerialState */

#define USB_CDC_SERIAL_STATE_DCD		(1 << 0)

#define USB_CDC_SERIAL_STATE_DSR		(1 << 1)

#define USB_CDC_SERIAL_STATE_BREAK		(1 << 2)

#define USB_CDC_SERIAL_STATE_RING_SIGNAL	(1 << 3)

#define USB_CDC_SERIAL_STATE_FRAMING		(1 << 4)

#define USB_CDC_SERIAL_STATE_PARITY		(1 << 5)

#define USB_CDC_SERIAL_STATE_OVERRUN		(1 << 6)



struct usb_cdc_speed_change {

	__le32	DLBitRRate;	/* contains the downlink bit rate (IN pipe) */

	__le32	ULBitRate;	/* contains the uplink bit rate (OUT pipe) */