other versions
- wheezy 3.2.78-1
USB_HCD_GIVEBACK_URB(9) | Host Controller APIs | USB_HCD_GIVEBACK_URB(9) |
NAME¶
usb_hcd_giveback_urb - return URB from HCD to device driverSYNOPSIS¶
void
usb_hcd_giveback_urb(struct usb_hcd * hcd,
struct urb * urb,
int status);
ARGUMENTS¶
hcdhost controller returning the URB
urb
urb being returned to the USB device
driver.
status
completion status code for the URB.
CONTEXT¶
DESCRIPTION¶
This hands the URB from HCD to its USB device driver, using its completion function. The HCD has freed all per-urb resources (and is done using urb->hcpriv). It also released all HCD locks; the device driver won't cause problems if it frees, modifies, or resubmits this URB. If urb was unlinked, the value of status will be overridden by urb->unlinked. Erroneous short transfers are detected in case the HCD hasn't checked for them.COPYRIGHT¶
March 2016 | Kernel Hackers Manual 3.2. |