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. If i replace the Raspberry Pi B with a Olimex Olinuxino iMX233 Maxi (Chipidea USB) the errors doesn't occure after disconnecting the hub. So i assume this issue is specific to dwc2 or Raspberry Pi. This issue doesn't look like a regression. The output of dmesg and lsusb -v can be found on gist [1]. Best regards Stefan [1] - https://gist.github.com/lategoodbye/dd04293078f2d8afbf73 -- 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
