As I explained in another thread, I was having trouble debugging on a particular device - a Lenovo Tab 2 A8 tablet. After much searching, I found a way that worked in my case to make the Lenovo tablet use the google USB driver. Here is how I did it.
If you find the google ADB USB driver in <android sdk> \ extras \ google \ usb_driver (in Windows) you will see a file called android_winusb.inf. If you edit this file with a text processor, like Notepad, you will find it has "sections" headed by things like [Google.NTx86] and [Google.NTamd64]. The items in that section are of the form: %SingleAdbInterface% = USB_Install, USB\VID_18D1&PID_4E11 %CompositeAdbInterface% = USB_Install, USB\VID_18D1&PID_4E12&MI_01 (The above items describe a Google Nexus One). The VID and PID are codes that uniquely describe a particular USB device. Apparently, a USB device will only use the Google USB driver if the VID and PID appear in one of these lines. So I edited the android_winusb.inf file and added lines at the end of both the [Google.NTx86] and [Google.NTamd64] section that looked like this: ;Lenovo PTP (ADB Interface) %CompositeAdbInterface% = USB_Install, USB\VID_17EF&PID_78DF&MI_01 Keep in mind that if the Android SDK is in Program Files (x86) (which it usually is) you will need to run Notepad or whatever editor you use in administrator mode. Now this has a certain risk in that adding this to the INF file "forces" the system to accept this driver as the driver for the device. If the device is really not compatible with this driver, probably bad things will happen. But for me it worked out. The Lenovo tablet is compatible and I was able to debug in Android Studio using ADB. I still need to explain how I found out the VID and PID of the Lenovo tablet. You can find that out in the Windows device manager. Turn on USB debugging in the target Android device, and in the case of the Lenovo tablet, I also had to enable the PTP connection (as opposed to the MTP connection). The VID and PID change depending on these settings. Anyway, once you do these things, in the device manager, right click on the device (probably in "Other devices") and select properties, then details. Then in the drop-down box select Hardware IDs. That is where you can find the VID and PID for the device. After the INF file has been properly modified, you can go to the device manager again, and find the device and select "Update driver". Select the option to browse manually and browse to the Google USB driver folder containing that INF file you just modified. Then do the driver update. If all goes well, the driver will now be associated with the device, and ADB will work with it. I would much rather have downloaded an official driver for the Lenovo tablet, and indeed I did find many websites offering such a thing. But none of them were official, and all of them offered the driver in the form of an unsigned EXE file (i.e. virus city). I saw nothing on the Lenovo webite for this particular device, nor the Google website. I don't recommend the method I used, but if you want to take responsibility for these actions, this information will help you do it. -Robert Scott Hopkins, MN -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/465b0b80-2dc9-42bc-875f-f52049d3a78a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
