Messages in this thread | | | Subject | UHCI halts endpoint on control stalls: seems wrong | From | Luca Barbieri <> | Date | 25 Nov 2002 00:43:58 +0100 |
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Some time ago I reported some USB problems consisting of getting EPIPEs when trying to read strings with lsusb.
I have done some more investigation and I think I solved the problem: I get EPIPEs because the control endpoint is stalled due to a failure and the halt is never cleared.
However drivers/usb/core/message.c contains the following paragraph: "Note that control and isochronous endpoints don't halt, although control endpoints report "protocol stall" (for unsupported requests) using the same status code used to report a true stall."
Based on this, I tried to remove the call to usb_endpoint_halt in uhci_result_control, and everything is now working.
Is this modification correct?
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