Hi

I'm running on my BeagleBone Black Ubuntu 13.10 from Robert Nelson (full 
prebuilded install from https://rcn-ee.net/deb/rootfs/saucy/, as-is, no 
customizations) and I'm trying to use USB video capture device, EasyCap 
which is based on stk1160 chipset. As I'm running kernel 3.8.13-bone28, my 
understanding was that stk1160 should be supported in the kernel, but when 
I plug it into USB port, nothing happens. Not even green light on device 
goes on. Not even dmesg  shows anything usefull (not even a evidence that I 
plugged it in). This is last usb related dmseg entry after reboot, when I 
plug in the device:

root@arm ~ > dmesg | grep usb
[   18.899708] usb0: MAC 32:2e:95:52:5c:40
[   18.899730] usb0: HOST MAC 90:59:af:5f:4d:d9
[   18.915017] musb-hdrc musb-hdrc.0.auto: MUSB HDRC host driver
[   18.915395] musb-hdrc musb-hdrc.0.auto: new USB bus registered, assigned 
bus number 2
[   18.915427] musb-hdrc musb-hdrc.0.auto: supports USB remote wakeup
[   18.915509] usb usb2: default language 0x0409
[   18.915543] usb usb2: udev 1, busnum 2, minor = 128
[   18.915556] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[   18.915569] usb usb2: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[   18.915581] usb usb2: Product: MUSB HDRC host driver
[   18.915591] usb usb2: Manufacturer: Linux 3.8.13-bone28 musb-hcd
[   18.915602] usb usb2: SerialNumber: musb-hdrc.0.auto
[   18.918958] usb usb2: usb_probe_device
[   18.918981] usb usb2: configuration #1 chosen from 1 choice
[   18.919045] usb usb2: adding 2-0:1.0 (config #1, interface 0)
[   18.919186] hub 2-0:1.0: usb_probe_interface
[   18.919201] hub 2-0:1.0: usb_probe_interface - got id
[   19.020329] usb usb2: bus auto-suspend, wakeup 1
[   21.270316] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready

lsusb also does not reveal anything:

root@arm ~ > lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


First I thought maybe device is based on another chipset (as there are many 
implementation of EasyCap on market), but when I plugged it into my PC, 
ubuntu 13.04 on VM ware identify s it:

[10499.882695] usb 1-2: new full-speed USB device number 7 using uhci_hcd
[10500.035235] usb 1-2: New USB device found, idVendor=05e1, idProduct=0408
[10500.035239] usb 1-2: New USB device strings: Mfr=1, Product=2, 
SerialNumber=0
[10500.035241] usb 1-2: Product: USB 2.0 Video Capture Controller
[10500.035242] usb 1-2: Manufacturer: Syntek Semiconductor
[10500.038055] usb 1-2: New device Syntek Semiconductor USB 2.0 Video 
Capture Controller @ 12 Mbps (05e1:0408, interface 0, class 0)
[10500.038058] usb 1-2: video interface 0 found
[10500.038059] usb 1-2: must be connected to a high-speed USB 2.0 port
[10500.038059]                 You may not be able to stream video smoothly
[10500.362352] saa7115 0-0025: saa7113 found (1f7113d0e100000) @ 0x4a 
(stk1160)
[10501.067161] stk1160: driver ver 0.9.5 successfully loaded

as well lsusb

user@ubuntu:~$ lsusb
Bus 001 Device 006: ID 0e0f:0002 VMware, Inc. Virtual USB Hub
Bus 001 Device 007: ID 05e1:0408 Syntek Semiconductor Co., Ltd STK1160 
Video Capture Device
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


So it is stk1160 chip. Why my BBB setup can not see it. Any hint what could 
be the the reason? I'm powering BBB from external 2A power supply, so power 
should not be the problem. Other devices like Logitech USB camera, USB 
flash drives work fine in that USB slot.

Appreciate any help on this topic :)

BR
Ivan

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