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usb: dwc3: core: document struct dwc3_request

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No functional changes. Merely adding useful
documentation for future readers.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Felipe Balbi 2016-04-05 11:33:30 +03:00
parent 53fd88189e
commit 5ef68c56e1
1 changed files with 13 additions and 0 deletions
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13
drivers/usb/dwc3/core.h
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@ -624,6 +624,19 @@ struct dwc3_hwparams {
/* HWPARAMS7 */
#define DWC3_RAM1_DEPTH(n) ((n) & 0xffff)
/**
* struct dwc3_request - representation of a transfer request
* @request: struct usb_request to be transferred
* @list: a list_head used for request queueing
* @dep: struct dwc3_ep owning this request
* @first_trb_index: index to first trb used by this request
* @epnum: endpoint number to which this request refers
* @trb: pointer to struct dwc3_trb
* @trb_dma: DMA address of @trb
* @direction: IN or OUT direction flag
* @mapped: true when request has been dma-mapped
* @queued: true when request has been queued to HW
*/
struct dwc3_request {
struct usb_request request;
struct list_head list;