Syntek Semicon DC-1125 Driver

Hello, I have a cheap USB video capture device from eBay containing an stk1160, which I hope to get working with the stk11xx driver under Linux (which I've pulled out of SVN).

It's called EasyCAP 2.0 USB:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=220146944440&ssPageName=STRK:MEWN:IT&ih=012

There are lots of them for sale, so I expect more people will try your driver. :)

I've added the device ID etc, and tried all combinations of webcam_model.

On modprobe it always fails in dev_stk11xx_camera_on().

EG, if I select:
webcam_model = SYNTEK_STK_M811;
webcam_type = STK11XX_VGA;

On modprobe:

[1112211.135452] Linux video capture interface: v2.00
[1112211.148543] stk11xx: Syntek USB2.0 webcam driver startup
[1112211.148663] stk11xx: Syntek USB2.0 - STK-1160 based capture device found.
[1112211.148668] stk11xx: Syntek EasyCAP USB2.0 - Product ID 0x0408.
[1112211.148677] stk11xx: Release: 0005
[1112211.148680] stk11xx: Number of interfaces : 3
[1112211.148688] /build/buildd/linux-source-2.6.22-2.6.22/drivers/usb/core/message.c: selecting invalid altsetting 5
[1112211.148694] stk11xx: usb_set_interface failed !
[1112211.151203] stk11xx: Initialize USB2.0 Syntek Camera
[1112212.177476] stk11xx: Check device return error (0x0201 = 0D) !
[1112212.943261] stk11xx: Check device return error (0x0201 = 0D) !
[1112213.500110] stk11xx: Check device return error (0x0201 = 0D) !
[1112214.055953] stk11xx: Check device return error (0x0201 = 0D) !
[1112214.116930] stk11xx: Check device return error (0x0201 = 0C) !
[1112214.116976] stk11xx: Load default sensor settings fail !
[1112214.130925] stk11xx: Syntek USB2.0 Camera is ready
[1112214.131019] stk11xx: Syntek USB2.0 Camera is now controlling video device /dev/video0
[1112214.131085] usbcore: registered new interface driver usb_stk11xx_driver
[1112214.131092] stk11xx: v1.2.0 : Syntek USB Video Camera

Then if I try and cat /dev/video0:

[1112258.476669] stk11xx: Check device return error (0x0201 = 0C) !
[1112258.476732] stk11xx: Load default sensor settings fail !
[1112258.489706] stk11xx: Check device return error (0x0201 = 0C) !
[1112258.497662] stk11xx: Check device return error (0x0201 = 0C) !
[1112259.894285] /build/buildd/linux-source-2.6.22-2.6.22/drivers/usb/core/message.c: selecting invalid altsetting 5
[1112259.894301] stk11xx: usb_set_interface failed !
[1112259.933259] stk11xx: Check device return error (0x0201 = 0C) !
[1112259.933304] stk11xx: Load default sensor settings fail !
[1112259.940255] stk11xx: Check device return error (0x0201 = 0C) !
[1112259.947253] stk11xx: Check device return error (0x0201 = 0C) !
[1112260.964008] stk11xx: isoc_init() submit_urb 0 failed with error -90
[1112260.964065] stk11xx: EMSGSIZE
[1112260.964097] stk11xx: isoc_init() submit_urb 1 failed with error -90
[1112260.964135] stk11xx: EMSGSIZE
[1112260.964166] stk11xx: isoc_init() submit_urb 2 failed with error -90
[1112260.964204] stk11xx: EMSGSIZE
[1112260.964235] stk11xx: isoc_init() submit_urb 3 failed with error -90
[1112260.964273] stk11xx: EMSGSIZE
[1112260.964303] stk11xx: isoc_init() submit_urb 4 failed with error -90
[1112260.964342] stk11xx: EMSGSIZE
[1112260.964372] stk11xx: isoc_init() submit_urb 5 failed with error -90
[1112260.964409] stk11xx: EMSGSIZE
[1112260.964437] stk11xx: isoc_init() submit_urb 6 failed with error -90
[1112260.964476] stk11xx: EMSGSIZE
[1112260.964504] stk11xx: isoc_init() submit_urb 7 failed with error -90
[1112260.964542] stk11xx: EMSGSIZE
[1112260.964572] stk11xx: isoc_init() submit_urb 8 failed with error -90
[1112260.964611] stk11xx: EMSGSIZE
[1112260.964641] stk11xx: isoc_init() submit_urb 9 failed with error -90
[1112260.964679] stk11xx: EMSGSIZE
[1112260.964710] stk11xx: isoc_init() submit_urb 10 failed with error -90
[1112260.964748] stk11xx: EMSGSIZE
[1112260.964779] stk11xx: isoc_init() submit_urb 11 failed with error -90
[1112260.964817] stk11xx: EMSGSIZE
[1112260.964847] stk11xx: isoc_init() submit_urb 12 failed with error -90
[1112260.964885] stk11xx: EMSGSIZE
[1112260.964912] stk11xx: isoc_init() submit_urb 13 failed with error -90
[1112260.964945] stk11xx: EMSGSIZE
[1112260.964979] stk11xx: isoc_init() submit_urb 14 failed with error -90
[1112260.965018] stk11xx: EMSGSIZE
[1112260.965046] stk11xx: isoc_init() submit_urb 15 failed with error -90
[1112260.965084] stk11xx: EMSGSIZE

I'm a competent C programmer (my job is writing drivers for professional broadcast video equipment) so would like to have a stab at getting this device working. I have a little experience with Linux device drivers.

How did you find out the interface details for the other chips? What is the best way to get started?

Here is the section from lsusb -vv:

Bus 001 Device 004: ID 05e1:0408 Syntek Semiconductor Co., Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x05e1 Syntek Semiconductor Co., Ltd
idProduct 0x0408
bcdDevice 0.05
iManufacturer 1 Syntek Semiconductor
iProduct 2 USB 2.0 Video Capture Controller
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 182
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 16
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 16
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0300 1x 768 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 2
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 16
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x03fc 1x 1020 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 1 Audio
bInterfaceSubClass 1 Control Device
bInterfaceProtocol 0
iInterface 11 USB Audio Interface
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdADC 1.00
wTotalLength 38
bInCollection 1
baInterfaceNr( 0) 2
AudioControl Interface Descriptor:
bLength 12
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0602 Digital Audio Interface
bAssocTerminal 0
bNrChannels 2
wChannelConfig 0x0003
Left Front (L)
Right Front (R)
iChannelNames 0
iTerminal 0
AudioControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 3
iTerminal 0
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 6 (FEATURE_UNIT)
bUnitID 3
bSourceID 1
bControlSize 1
bmaControls( 0) 0x01
Mute
iFeature 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 11 USB Audio Interface
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 1 Audio
bInterfaceSubClass 2 Streaming
bInterfaceProtocol 0
iInterface 11 USB Audio Interface
AudioStreaming Interface Descriptor:
bLength 7
bDescriptorType 36
bDescriptorSubtype 1 (AS_GENERAL)
bTerminalLink 2
bDelay 1 frames
wFormatTag 1 PCM
AudioStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 2 (FORMAT_TYPE)
bFormatType 1 (FORMAT_TYPE_I)
bNrChannels 2
bSubframeSize 2
bBitResolution 16
bSamFreqType 1 Discrete
tSamFreq[ 0] 48000
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
AudioControl Endpoint Descriptor:
bLength 7
bDescriptorType 37
bDescriptorSubtype 1 (EP_GENERAL)
bmAttributes 0x00
bLockDelayUnits 0 Undefined
wLockDelay 0 Undefined
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0002
(Bus Powered)
Remote Wakeup Enabled

Kind regards,

Tony

I'm planning to buy this device too.
But before I do i want to make shure there is a linux driver for it.

I just stared to lean C at my education, so maybe i can be of some help.

If this device could be supported, it will be much appreciated!

I think that you need an other driver.

Moreover, you need support audio feature.

If you want to help, I need USB logs from Windows driver.

Regards,

Nicolas

Hi Nicolas, I've got usbsnoop for Windows. How do you want the logs taken?

Do you want separate logs for when:

-the device is inserted into the USB port
-when the viewing application starts
-when controls are adjusted?

I was going to have a go at adding the configs myself but got sidelined by a Gtk project and put this on a backburner.

But it would be very cool to get the video part to work with Linux. :)

Tony

It would be very cool indeed!
I don't need the audio part, it's just for a security cam.

if you need any help, you can contact me at f.vandenijssel (at character) gmail.com
I'm not a linux professional, but i know my way around.

Tony, have you provided the usbsnoop info required by Nicklas?
I have one of these vidcaps too.There will be more call for drivers soon enough.

Anyone ever get the EasyCap USB 2.0 working with this driver. I don't see any other Syntek based drivers out there.

hello there
i just bought this stk1160 adapter, and i've discovered that the good old em28xx driver doesnt' apply, so i found this project which *seems* to address my needs :)

my question is: any chance to get this working, long time passed since this thread was started, any news?

Hi,

You can use this driver ; but you have to adapt the driver :(

You have to add a new file stk11xx-dev-0408.c

1) At first, get the USB logs from Windows
2) Parse the logs with tools (in repository)
3) Then write the good command in the stk11xx-dev-0408 file (as the stk11xx-dev-XXXX)

Regards,

Nicolas

thanks nicolas for your answer and explanation...

unfortunately i am stuck with the second point of your explanation: i've recorded a stream of raw packets with usbmon but the parser seems not giving anything - i wonder if this is because i used the latest version of the windows software because the one uploaded on svn didn't install on my windows machine, and usbsnoop wasn't recording anything :s

anyway if you don't mind taking a look, here's the dump (~24MiB): "http://c10ud.altervista.org/Syntek STK1160$081231$001.dmslog.tar.gz"

i will try on another machine asap, and btw thanks for your efforts :)

A user on the ubuntu forum said, although this device uses the syntek usb bridge, it uses an SAA7113 chip for the video.

The previous version of this device used the em2861 USB video bridge, but that wasn't a problem since em2xxx supports SAA7xxx...

What can be done about this?

see the other thread about this - I'm currently implementing support for STK1160 in the driver.
I currently have video capture working for a single input.