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USB: <linux/usb/ch9.h> minor doc update

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Minor doc update to <linux/usb/ch9.h> ... say where USB_DT_CS_* came
from and update the definitions to match how they're derived there.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Brownell 2007-04-17 17:51:38 -07:00 committed by Greg Kroah-Hartman
parent 8c9862e512
commit aa2ce5ca6b
1 changed files with 9 additions and 6 deletions
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15
include/linux/usb/ch9.h
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@ -181,12 +181,15 @@ struct usb_ctrlrequest {
#define USB_DT_WIRE_ADAPTER 0x21
#define USB_DT_RPIPE 0x22
/* conventional codes for class-specific descriptors */
#define USB_DT_CS_DEVICE 0x21
#define USB_DT_CS_CONFIG 0x22
#define USB_DT_CS_STRING 0x23
#define USB_DT_CS_INTERFACE 0x24
#define USB_DT_CS_ENDPOINT 0x25
/* Conventional codes for class-specific descriptors. The convention is
* defined in the USB "Common Class" Spec (3.11). Individual class specs
* are authoritative for their usage, not the "common class" writeup.
*/
#define USB_DT_CS_DEVICE (USB_TYPE_CLASS | USB_DT_DEVICE)
#define USB_DT_CS_CONFIG (USB_TYPE_CLASS | USB_DT_CONFIG)
#define USB_DT_CS_STRING (USB_TYPE_CLASS | USB_DT_STRING)
#define USB_DT_CS_INTERFACE (USB_TYPE_CLASS | USB_DT_INTERFACE)
#define USB_DT_CS_ENDPOINT (USB_TYPE_CLASS | USB_DT_ENDPOINT)
/* All standard descriptors have these 2 fields at the beginning */
struct usb_descriptor_header {