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usb/uas: add usb_pipe_usage_descriptor

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usb_pipe_usage_descriptor defines the struct which is used to describe
the type of the endpoint in UAS (status/command/data in+out). It will be
used by the UAS gadget, the host code is using a char array for the
access.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Sebastian Andrzej Siewior 2012-01-11 12:45:57 +01:00 • committed by Sarah Sharp
commit ee398b59ec
1 changed files with 8 additions and 0 deletions
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8
include/linux/usb/uas.h
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@ -47,6 +47,14 @@ struct sense_iu {
__u8 sense[SCSI_SENSE_BUFFERSIZE]; __u8 sense[SCSI_SENSE_BUFFERSIZE];
}; };
struct usb_pipe_usage_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bPipeID;
__u8 Reserved;
} __attribute__((__packed__));
enum { enum {
CMD_PIPE_ID = 1, CMD_PIPE_ID = 1,
STATUS_PIPE_ID = 2, STATUS_PIPE_ID = 2,