usb: gadget: udc: core: Document the relation between usb_ep_queue() and completion callback

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Improve the kerneldoc for usb_ep_queue() to note explicitly that the
request's completion routine will be called if and only if the return
value is 0.  The corresponding fact about usb_submit_urb() for the
host-side API has long been documented, and this has always been the
intention for the gadget API.  But until now, documentation seems to
have been lacking.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

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Alan Stern 2018-03-27 10:27:06 -04:00 • committed by Felipe Balbi

parent 6d08b06e67

commit 5d1332a8ea

1 changed files with 6 additions and 0 deletions

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drivers/usb/gadget/udc/core.c

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