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Commit b42abbcd authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: omninet: clean up protocol description 



Clean up and fix typos in protocol comment.

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 81f58c67

drivers/usb/serial/omninet.c

+6 −7
Original line number Diff line number Diff line
@@ -74,29 +74,28 @@ static struct usb_serial_driver * const serial_drivers[] = { 
};





/* The protocol.

/*

 * The protocol.

 *

 * The omni.net always exchange 64 bytes of data with the host. The first

 * four bytes are the control header, you can see it in the above structure.

 * four bytes are the control header.

 *

 * oh_seq is a sequence number. Don't know if/how it's used.

 * oh_len is the length of the data bytes in the packet.

 * oh_xxx Bit-mapped, related to handshaking and status info.

 *	I normally set it to 0x03 in trasmitted frames.

 *	I normally set it to 0x03 in transmitted frames.

 *	7: Active when the TA is in a CONNECTed state.

 *	6: unknown

 *	5: handshaking, unknown

 *	4: handshaking, unknown

 *	3: unknown, usually 0

 *	2: unknown, usually 0

 *	1: handshaking, unknown, usually set to 1 in trasmitted frames

 *	0: handshaking, unknown, usually set to 1 in trasmitted frames

 *	1: handshaking, unknown, usually set to 1 in transmitted frames

 *	0: handshaking, unknown, usually set to 1 in transmitted frames

 * oh_pad Probably a pad byte.

 *

 * After the header you will find data bytes if oh_len was greater than zero.

 *

 */



struct omninet_header {

	__u8	oh_seq;

	__u8	oh_len;