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.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 USB_EP_CLEAR_HALT(9)