USB configuration error on connecting pandaboard in Android acessory mode to PC

From where did you observe this error,

can you be more specific what code did you use from the AOA and can you provide some log information in order to analyse?

Regards,

Boyko

Hi

Thanks for reply.

I am following these two sites:

http://android.serverbox.ch/?p=262

http://arnaudbertrand.com/python-android-accessory-usb-proof-of-concept/

On running the C cod  provided by first site I am getting followings log

$ sudo ./simplectrl

Claimed Interface
Verion Code Device: 1
Accessory Identification sent: 1
Attempted to put device into accessory mode: 1
inside for
Interface claimed, ready to transfer data

Error: LIBUSB_ERROR_IO
Input/output error.
Error during main phase

$ dmesg
[  991.882200] usb 2-1: USB disconnect, device number 25
[  992.187311] usb 2-1: new high-speed USB device number 26 using xhci_hcd
[  992.203879] usb 2-1: New USB device found, idVendor=18d1, idProduct=2d01
[  992.203888] usb 2-1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
[  992.203893] usb 2-1: Product: pandaboard
[  992.203897] usb 2-1: Manufacturer: unknown
[  992.203900] usb 2-1: SerialNumber: 0123456789ABCDEF
[  992.215555] usb 2-1: can't set config #1, error -32
[  992.844409] simplectrl[2951]: segfault at 0 ip 00007fd4cd76edcb sp 00007fff24b05bc0 error 6 in libusb-1.0.so.0.1.0[7fd4cd76a000+15000]

On running the Python code provided by second code I am getting the following log:

$ sudo python pyandroidaccessory.py
Looking for Android Accessory
VID: 0x18d1 - PID: 0x2d01

Android accessory not found
Try to start accessory mode
Looking for Galaxy Nexus
VID: 0x18d1 - PID: 0x0001

Android device found

Device already configured, should be OK
Protocol version: 1
Looking for Android Accessory
VID: 0x18d1 - PID: 0x2d01
Accessory mode started

Sensor: 50
message from PC S0050 open
open_device1
<usb.backend.libusb1._DeviceHandle object at 0x7fad2fe7d410>
[Errno None] Configuration not set
message from Phone  [Errno None] Configuration not set
Sensor: 50
message from PC S0050 [Errno None] Configuration not set
message from Phone  [Errno None] Configuration not set
Sensor: 50
message from PC S0050 [Errno None] Configuration not set
message from Phone  [Errno None] Configuration not set
Sensor: 50
message from PC S0050 [Errno None] Configuration not set
message from Phone  [Errno None] Configuration not set

$ dmesg
[ 2241.675670] usb 2-1: new high-speed USB device number 35 using xhci_hcd
[ 2241.692471] usb 2-1: New USB device found, idVendor=18d1, idProduct=0001
[ 2241.692480] usb 2-1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
[ 2241.692485] usb 2-1: Product: pandaboard
[ 2241.692489] usb 2-1: Manufacturer: unknown
[ 2241.692493] usb 2-1: SerialNumber: 0123456789ABCDEF
[ 2241.704228] cdc_acm 2-1:1.1: This device cannot do calls on its own. It is not a modem.
[ 2241.704315] cdc_acm 2-1:1.1: ttyACM0: USB ACM device
[ 2241.704818] cdc_acm 2-1:1.3: This device cannot do calls on its own. It is not a modem.
[ 2241.704897] cdc_acm 2-1:1.3: ttyACM1: USB ACM device
[ 2354.731922] usb 2-1: usbfs: interface 1 claimed by cdc_acm while 'python' sets config #1
[ 2354.755041] usb 2-1: USB disconnect, device number 35
[ 2355.126615] usb 2-1: new high-speed USB device number 36 using xhci_hcd
[ 2355.143288] usb 2-1: New USB device found, idVendor=18d1, idProduct=2d01
[ 2355.143298] usb 2-1: New USB device strings: Mfr=2, Product=3, SerialNumber=4
[ 2355.143303] usb 2-1: Product: pandaboard
[ 2355.143307] usb 2-1: Manufacturer: unknown
[ 2355.143310] usb 2-1: SerialNumber: 0123456789ABCDEF
[ 2355.154832] usb 2-1: can't set config #1, error -32

Thanks