Messages in this thread | | | From | John Stultz <> | Date | Wed, 5 Oct 2016 23:33:38 -0700 | Subject | [REGRESSION] "dwc2: gadget: fix TX FIFO size and address initialization" breaks "adb logcat" on hikey |
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Hey folks, So I've run into some trouble that I've narrowed down to commit aa381a7259c3 ("usb: dwc2: gadget: fix TX FIFO size and address initialization").
After booting up android on HiKey, if I run "adb logcat", I get about a page of logs and then I get disconnected. On the device side, I see the following in dmesg:
[ 35.652076] dwc2 f72c0000.usb: dwc2_hsotg_ep_sethalt(ep ffffffc078a4c218 ep1in, 0) [ 35.660334] dwc2 f72c0000.usb: dwc2_hsotg_ep_sethalt(ep ffffffc078a4c018 ep1out, 0)
After which if I stop adbd I see:
[ 99.471363] dwc2 f72c0000.usb: dwc2_hsotg_ep_stop_xfr: timeout flushing fifos
and if I then restart adbd on the device it will sometimes work, but not always.
Reverting ba48eab8866c ("usb: dwc2: gadget: change variable name to more meaningful") and aa381a7259c3 ("usb: dwc2: gadget: fix TX FIFO size and address initialization")
makes things work again.
Any thoughts as to what might be going wrong here? I'd be happy to help debug things.
thanks -john
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