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[Q] Using USB printer with EM210 Board Android 4.03

OP mrserrao

18th August 2014, 11:53 AM   |  #1  
OP Junior Member
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2 posts
Join Date:Joined: Aug 2014
Hi everyone
I'm working on a custom embedbed android version with printing support. I'm having some troubles when connecting the printer do the board (EM210 Android 4.0)
This is the log from dmsg when I connect the usb printer (1.1 USB) the board is compliant with USB 2.0.
[ 3867.524022] usb 1-1.3: new full speed USB device number 14 using s5p-ehci
[ 3867.614000] usb 1-1.3: device descriptor read/64, error -32
[ 3867.804011] usb 1-1.3: device descriptor read/64, error -32
[ 3867.994175] usb 1-1.3: new full speed USB device number 15 using s5p-ehci
[ 3868.084009] usb 1-1.3: device descriptor read/64, error -32
[ 3868.274402] usb 1-1.3: device descriptor read/64, error -32
[ 3868.469008] usb 1-1.3: new full speed USB device number 16 using s5p-ehci
[ 3868.883827] usb 1-1.3: device not accepting address 16, error -32
[ 3868.904184] hub 1-1:1.0: unable to enumerate USB device on port 3
[ 3869.114141] usb 1-1.3: new full speed USB device number 18 using s5p-ehci

I used USB Device INFO app and in Linux tab I can see that the printer was correctly mounted on /sys/bus/usb/devices/1-1.3/ but In Android there is no device detected.

Any idea on how can I try to make this work?
Thanks for any help
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