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Documentation/usb/error-codes.txt mentions that urb->status can be set to -EXDEV, if the isochronous transfer was not fully completed. However, in practice, EHCI, UHCI, and OHCI all only set -EXDEV in the individual frame status, never in the URB status. Those host controller actually always pass in a zero status to usb_hcd_giveback_urb, and rely on the core to set the appropriate status value. The xHCI driver ran into issues with the uvcvideo driver when it tried to set -EXDEV in urb->status, because the driver refused to submit URBs, and the userspace camera application's video froze. Clean up the documentation to reflect the actual implementation. Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> |
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| .. | ||
| acm.txt | ||
| anchors.txt | ||
| authorization.txt | ||
| bulk-streams.txt | ||
| callbacks.txt | ||
| CREDITS | ||
| dma.txt | ||
| ehci.txt | ||
| error-codes.txt | ||
| gadget_hid.txt | ||
| gadget_multi.txt | ||
| gadget_printer.txt | ||
| gadget_serial.txt | ||
| hotplug.txt | ||
| iuu_phoenix.txt | ||
| linux-cdc-acm.inf | ||
| linux.inf | ||
| misc_usbsevseg.txt | ||
| mtouchusb.txt | ||
| ohci.txt | ||
| persist.txt | ||
| power-management.txt | ||
| proc_usb_info.txt | ||
| rio.txt | ||
| URB.txt | ||
| usb-help.txt | ||
| usb-serial.txt | ||
| usbmon.txt | ||
| wusb-cbaf | ||
| WUSB-Design-overview.txt | ||