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. November 2013 USB_HUB_CLEAR_TT_BUF(9)[top]
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