USB_HUB_CLEAR_TT_BUF(9) USB Core APIs USB_HUB_CLEAR_TT_BUF(9)
NAME
usb_hub_clear_tt_buffer - clear control/bulk TT state in high speed hub
SYNOPSIS
int usb_hub_clear_tt_buffer(struct urb * urb);
ARGUMENTS
urb
an URB associated with the failed or incomplete split transaction
DESCRIPTION
High speed HCDs use this to tell the hub driver that some split control or bulk transaction failed in a way that requires clearing internal
state of a transaction translator. This is normally detected (and reported) from interrupt context.
It may not be possible for that hub to handle additional full (or low) speed transactions until that state is fully cleared out.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 USB_HUB_CLEAR_TT_BUF(9)
