topic Re: does the Kinetis K81 USB suspend is available when connected with Android device? in Kinetis Microcontrollers

does the Kinetis K81 USB suspend is available when connected with Android device?

robinliao — Thu, 15 Apr 2021 09:41:48 GMT

Hello NXP

Is the usb pause mode available when connected to an Android phone/tablet?

I have implemented the USB suspend function on our device and it works fine

my usb devices can be suspended/resume when connected to the host PC

but when I connect to the Android phone, the usb device is always running, and will not enter the USB suspend state

How to configure the usb library to support usb suspend on Android devices? Or is this problem based on the Android configuration?

Thanks

Robin

Re: does the Kinetis K81 USB suspend is available when connected with Android device?

FelipeGarcia — Tue, 20 Apr 2021 18:10:49 GMT

Hi Robin,

We do not have specific configuration for Android devices in our USB stack, therefore, I think the problem could be on the Android side, maybe there is a some driver missing.

Best regards,

Felipe

Re: does the Kinetis K81 USB suspend is available when connected with Android device?

robinliao — Fri, 23 Apr 2021 09:14:33 GMT

it looks like USB autosuspend did not enabled on the Android device?

thank you for your response