Problem: saa7113 (saa7115) vs. "conrad usb grabber usb-472"

Problem: saa7113 (saa7115) vs. "conrad usb grabber usb-472"

[Bodo Eggert]

System: Debian Jessie x64. (Using qv4l2).

I've got a USB video grabber called "conrad usb grabber usb-472", 
essentially it's a no-name-branding. It's recognized as saa7113 by the 
saa7115 driver.

The device has one video input (chinch, yellow) and a stereo input (red 
and white). The driver does recognize three video inputs 
(green/yellow/red), neither of them works: No frame recognized. I verified 
the camera to supply a correct signal.

Trying to use MMIO, qv4l2 will hang and needs to be killed.
Trying to use read(), I get a black screen.

(Sorry if this isn't the correct list.

I'm OK with just throwing the thing away, but if fixing it is an option, 
I'll help.)

uname -a
Linux be10 3.16.0-4-amd64 #1 SMP Debian 3.16.39-1 (2016-12-30) x86_64 
GNU/Linux


lsusb:
Bus 003 Device 002: ID 0573:0400 Zoran Co. Personal Media Division (Nogatech) D-Link V100

dmesg:
[ 7518.194350] usb 3-2: new full-speed USB device number 2 using ohci-pci
[ 7518.371408] usb 3-2: New USB device found, idVendor=0573, idProduct=0400
[ 7518.371420] usb 3-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 7519.217042] usbvision_probe: D-Link V100 found
[ 7519.217461] USBVision[0]: registered USBVision Video device video1 [v4l2]
[ 7519.217505] usbcore: registered new interface driver usbvision
[ 7519.217507] USBVision USB Video Device Driver for Linux : 0.9.11
[ 7519.902857] saa7115 5-0025: saa7113 found @ 0x4a (usbvision-3-2)

Re: Problem: saa7113 (saa7115) vs. "conrad usb grabber usb-472"

[Devin Heitmueller]

> lsusb:
> Bus 003 Device 002: ID 0573:0400 Zoran Co. Personal Media Division (Nogatech) D-Link V100

The Zoran usbvision driver has been a mess for years, and it's not
going to get better anytime soon.  It's a *really* old design and
there hasn't been any interest from any of the developers to work on
it.

In this particular case, you're probably way better off just throwing
it away and buying a new $25 capture device.

Devin

-- 
Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com

Re: Problem: saa7113 (saa7115) vs. "conrad usb grabber usb-472"

[Bodo Eggert]

On Tue, 21 Feb 2017, Devin Heitmueller wrote:

> > lsusb:
> > Bus 003 Device 002: ID 0573:0400 Zoran Co. Personal Media Division (Nogatech) D-Link V100
> 
> The Zoran usbvision driver has been a mess for years, and it's not
> going to get better anytime soon.  It's a *really* old design and
> there hasn't been any interest from any of the developers to work on
> it.
> 
> In this particular case, you're probably way better off just throwing
> it away and buying a new $25 capture device.

Thanks.