qualcomm msm8955/cb05 USB check device mode is USB2/USB3
msm8953/cb05 插上otg cable,會出現2個root hub Bus 001 Device 001: ID 1d6b:0002 Bus 002 Device 001: ID 1d6b:0003
Bus 001上的裝置,是usb2.0 Bus002上的裝置,是usb3.0
插上usb2_disk, lsusb Bus 001 Device 006: ID 8564:1000 Bus 001 Device 001: ID 1d6b:0002 Bus 002 Device 001: ID 1d6b:0003
插上usb3_disk, lsusb Bus 002 Device 004: ID 0480:a006 Bus 001 Device 001: ID 1d6b:0002 Bus 002 Device 001: ID 1d6b:0003
More, 在以下路徑,找speed的檔案, /sys/devices/soc/7000000.ssusb/7000000.dwc3/xhci-hcd.0.auto
插上usb2_disk ./usb1/1-1/speed ./usb1/speed ./usb2/speed 內容為 480 480 5000
插上usb3_disk ./usb1/speed ./usb2/2-1/speed ./usb2/speed 內容為 480 5000 5000
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