Can I use the adb shell to know that the phone support OTG or not?

Question

Can I use adb shell command to detect the phone support OTG to transmission the files with an USB Flash Drive with OTG function?


— user2131116 | Sources

Answer

Yes. All you need to do is test for the presence of the file that enables it. On devices that do:



# adb shell ls /system/etc/permissions/android.hardware.usb.host.xml

/system/etc/permissions/android.hardware.usb.host.xml


And otherwise:



# adb shell ls /system/etc/permissions/android.hardware.usb.host.xml

/system/etc/permissions/android.hardware.usb.host.xml: No such file or directory


Of course, it's possible for a device to be misconfigured — but you have to actually physcially test OTG to determine that.


— Matthew Read | Sources

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