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    • Tomasz Figa's avatar
      veyron: Use more general rule for USB camera persist enable · 6a016624
      Tomasz Figa authored
      
      
      The problem with USB on veyron is not related directly to USB camera,
      but rather to one of the USB controllers not handling resume from
      autosuspend correctly. Current workaround enables persist only for
      one particular USB camera recognized by USB vendor and device IDs.
      However it does not take into account potential changes in built-in
      hardware list on the platform, e.g. camera module change or addition of
      extra USB device.
      
      To fix this issue, this patch replaces current udev rule with a more
      general one, which enables persist for all devices on usb3 bus, by
      checking the value of busnum attribute.
      
      BUG=chrome-os-partner:34217
      TEST=cat /sys/devices/ff500000.usb/usb3/3-1/power/persist; camera tested on apprtc
      
      Change-Id: I07a99317b973b053331c71e5a4e880d197c04521
      Signed-off-by: default avatarTomasz Figa <tfiga@chromium.org>
      Reviewed-on: https://chromium-review.googlesource.com/242210
      
      Reviewed-by: default avatarDouglas Anderson <dianders@chromium.org>
      Commit-Queue: Douglas Anderson <dianders@chromium.org>
      Trybot-Ready: Douglas Anderson <dianders@chromium.org>
      Tested-by: default avatarDouglas Anderson <dianders@chromium.org>
      6a016624
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