| USB_EP_CLEAR_HALT(9) | Kernel Mode Gadget API | USB_EP_CLEAR_HALT(9) |
NAME¶
usb_ep_clear_halt - clears endpoint halt, and resets toggle
SYNOPSIS¶
int usb_ep_clear_halt(struct usb_ep * ep);
ARGUMENTS¶
ep
the bulk or interrupt endpoint being reset
DESCRIPTION¶
Use this when responding to the standard usb “set interface” request, for endpoints that aren´t reconfigured, after clearing any other state in the endpoint´s i/o queue.
Returns zero, or a negative error code. On success, this call clears the underlying hardware state reflecting endpoint halt and data toggle. Note that some hardware can´t support this request (like pxa2xx_udc), and accordingly can´t correctly implement interface altsettings.
AUTHOR¶
David Brownell <dbrownell@users.sourceforge.net>
Author.
COPYRIGHT¶
| April 2023 | Kernel Hackers Manual 2.6. |