USB: <linux/usb/ch9.h> minor doc update
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>
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@ -181,12 +181,15 @@ struct usb_ctrlrequest {
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#define USB_DT_WIRE_ADAPTER 0x21
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#define USB_DT_RPIPE 0x22
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/* conventional codes for class-specific descriptors */
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#define USB_DT_CS_DEVICE 0x21
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#define USB_DT_CS_CONFIG 0x22
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#define USB_DT_CS_STRING 0x23
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#define USB_DT_CS_INTERFACE 0x24
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#define USB_DT_CS_ENDPOINT 0x25
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/* Conventional codes for class-specific descriptors. The convention is
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* defined in the USB "Common Class" Spec (3.11). Individual class specs
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* are authoritative for their usage, not the "common class" writeup.
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*/
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#define USB_DT_CS_DEVICE (USB_TYPE_CLASS | USB_DT_DEVICE)
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#define USB_DT_CS_CONFIG (USB_TYPE_CLASS | USB_DT_CONFIG)
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#define USB_DT_CS_STRING (USB_TYPE_CLASS | USB_DT_STRING)
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#define USB_DT_CS_INTERFACE (USB_TYPE_CLASS | USB_DT_INTERFACE)
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#define USB_DT_CS_ENDPOINT (USB_TYPE_CLASS | USB_DT_ENDPOINT)
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/* All standard descriptors have these 2 fields at the beginning */
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struct usb_descriptor_header {
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