Stefan, On Sat, Jan 23, 2016 at 9:08 AM, Stefan Wahren <stefan.wahren@xxxxxxxx> wrote: > Hi, > >> Stefan Wahren <stefan.wahren@xxxxxxxx> hat am 17. Januar 2016 um 04:36 >> geschrieben: >> >> >> Hi, >> >> i have a Cherry G83 USB Keyboard connected to external 4 Port USB hub and this >> is connected to a Raspberry Pi B (Linux 4.4-rc7). >> >> If i disconnect the USB hub from the Pi, i will get multiple of this message: >> >> [ 103.558379] dwc2 20980000.usb: --Host Channel 1 Interrupt: Transaction >> Error-- >> [ 103.558639] dwc2 20980000.usb: --Host Channel 6 Interrupt: Transaction >> Error-- >> [ 103.558709] dwc2 20980000.usb: --Host Channel 7 Interrupt: Transaction >> Error-- >> [ 103.558771] dwc2 20980000.usb: --Host Channel 3 Interrupt: Transaction >> Error-- >> [ 103.558871] usb 1-1.2: clear tt 1 (9051) error -71 >> >> If i reconnect the USB hub everything works as before. It would be interesting to find out what the root cause of the transaction error was, but perhaps things would be a little less bad with <https://chromium-review.googlesource.com/323773>? You might need to comment out your "Transaction Error" printouts, but then maybe things would at least be slightly better? I'm a little hesitant to post up another actual patch to the list since I fear I might have already overwhelmed (the currently out of office) John Young. -Doug -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html