hiii firstly check that your devices is connected with usb host, if your devices is connected than print device name and vendor id. after that you send command and check response from your device. Thanks
Anupam Jain On Wednesday, 31 August 2011 21:06:43 UTC+5:30, Sam wrote: > > Hello , > > I've written an app to connect an USB Device and read data from > external usb device to my android USB Host 3.1 root tab device. > i used http://developer.android.com/guide/topics/usb/host.html android > USB Host Api. But every time read data value got > zero value in every byte from external device. > > can anyone send me demo or proper documentation how to read data from > external device ? > any encoding require for reading data ? > > Thanks -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
