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USB: cdc: add serial-state defines

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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: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20220725075841.1187-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Johan Hovold 2022-07-25 09:58:36 +02:00 committed by Greg Kroah-Hartman
parent b4023554b1
commit a0a3202b44
1 changed files with 9 additions and 0 deletions
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9
include/uapi/linux/usb/cdc.h
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@ -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) */