I have picked up a Veo Stingray webcam. This thing goes by Vendor=0545 ProdID=808b Rev= 3.0c. This matches the ibmcam vendor code, but not precisely the product code, the closest being 0x800d.

I have tried modify the ibmcam.c drive to add the product code as suggested by folks on threads I have found in google, but I cannot seem to get the ibmcam_probe function to be called. Here is the dmesg:


Linux video capture interface: v1.00
usb.c: registered new driver ibmcam
usb.c: USB disconnect on device 00:04.2-2 address 2
hub.c: new USB device 00:04.2-2, assigned address 3
usb.c: USB device 3 (vend/prod 0x545/0x808b) is not claimed by any active driver.

I have put info() calls right in the ibmcam_probe function so I know it is not being called:

static void *ibmcam_probe(struct usb_device *dev, unsigned int ifnum, const struct usb_device_id *devid)
{
struct uvd *uvd = NULL;
int i, nas, model=0, canvasX=0, canvasY=0;
int actInterface=-1, inactInterface=-1, maxPS=0;
unsigned char video_ep = 0;


info("ibmcam_probe(%p,%u.)", dev, ifnum);
:

My system is 2.4.20-31.9 #1 Tue Apr 13 17:38:16 EDT 2004 i686 athlon i386 GNU/Linux
cat /proc/bus/usb/devices:

T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 1.01 Cls=ff(vend.) Sub=ff Prot=ff MxPS= 8 #Cfgs= 1
P: Vendor=0545 ProdID=808b Rev= 3.0c
S: Product=USB IMAGING DEVICE
C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=81(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 8 Ivl=0ms
I: If#= 0 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=81(I) Atr=01(Isoc) MxPS=1022 Ivl=1ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms

cat /proc/bus/usb/drivers:
usbdevfs
hub
96-111: hiddev
hid
ibmcam

This been a good exercise in learning about drivers, usb and what-not.

Adding the correct entry into the driver's id_table was what was needed. The probe callback will not be called unless the id_table matches whatever vendor, product or revision the driver code puts in the id_table. In my case here is the id_table entry:

static struct usb_device_id id_table[] = { ...
{ USB_DEVICE_VER(IBMCAM_VENDOR_ID, VEO_808B_PRODUCT_ID, 0x030c, 0x030c) }, /* Model ?? */
{}};

With a few other hacks, the driver now claims the device, but the video4linux apps still don't like it. Oh well, more poking and learning to do.