USB: cdc: add control-signal defines

Add defines for the Control Signal Bitmap Values from section 6.2.14
SetControlLineState of the CDC specification version 1.1.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20220725075841.1187-2-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/uapi/linux/usb/cdc.h b/include/uapi/linux/usb/cdc.h
index 6d61550..372c814 100644 (file)
--- a/include/uapi/linux/usb/cdc.h
+++ b/include/uapi/linux/usb/cdc.h
@@ -271,6 +271,10 @@ struct usb_cdc_line_coding {
        __u8    bDataBits;
 } __attribute__ ((packed));
 
+/* Control Signal Bitmap Values from 6.2.14 SetControlLineState */
+#define USB_CDC_CTRL_DTR                       (1 << 0)
+#define USB_CDC_CTRL_RTS                       (1 << 1)
+
 /* table 62; bits in multicast filter */
 #define        USB_CDC_PACKET_TYPE_PROMISCUOUS         (1 << 0)
 #define        USB_CDC_PACKET_TYPE_ALL_MULTICAST       (1 << 1) /* no filter */