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Tinker Engineer
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  1. Hi Ken, You can use this patch file to update ch341.c to the newest version. This patch will be included in the next OS image release. @ken ch341.7z
  2. Hi, Please check your devpath. You can use "dmesg" or "udevadm monitor" command to get more information. root@linaro-alip:/dev/input/by-id# udevadm monitor monitor will print the received events for: UDEV - the event which udev sends out after rule processing KERNEL - the kernel uevent [ 458.189823] usb 5-1.3: new low-speed USB device number 4 using xhci-hcd [ 458.298912] usb 5-1.3: New USB device found, idVendor=0461, idProduct=4e84 [ 458.305868] usb 5-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 458.313467] usb 5-1.3: Product: USB Optical Mouse [ 458.318335] usb 5-1.3: Manufacturer: PixArt [ 458.324909] usb 5-1.3: ep 0x81 - rounding interval to 64 microframes, ep desc says 80 microframes KERNEL[458.005759] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3 (usb) KERNEL[458.047247] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0 (usb) KERNEL[458.054557] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002 (hid) [ 458.383211] input: PixArt USB Optical Mouse as /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002/input/input5 KERNEL[458.063876] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002/input/input5 (input) KERNEL[458.090385] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002/input/input5/event3 (input) [ 458.453946] hid-generic 0003:0461:4E84.0002: input,hidraw0: USB HID v1.11 Mouse [PixArt USB Optical Mouse] on usb-xhci-hcd.11.auto-1.3/input0 KERNEL[458.134852] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002/hidraw/hidraw0 (hidraw) UDEV [458.165723] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3 (usb) UDEV [458.190489] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0 (usb) UDEV [458.202123] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002 (hid) UDEV [458.215344] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002/hidraw/hidraw0 (hidraw) UDEV [458.223512] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002/input/input5 (input) UDEV [458.298266] add /devices/platform/usb1/fe900000.dwc3/xhci-hcd.11.auto/usb5/5-1/5-1.3/5-1.3:1.0/0003:0461:4E84.0002/input/input5/event3 (input) root@linaro-alip:/dev/input# ls by-id by-path event0 event1 event2 event3
  3. Hi gc986, If you want do the following command on boot. You can modify init.usb.configfs.rc by "remount" Then reboot to check property has been set.
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