Hi,
I have written a driver for the Konica webcam chip found in the Intel YC76 webcam. It uses the usbvideo, so it just acts as a miniport driver. The patch is against 2.5.4-pre2 and can be found @ http://www.renegade.org.uk/konica/patch-2.5.4-pre2-konicawc.diff I had to make a small change to usbvideo.[ch] so that I could override the StartDataPump & StopDataPump functions as although the webcam uses isochronous URBs, it sends a small status URB for each data URB. I have included the patch against usbvideo.[ch] below. I'm not sure who the maintainer is for it, so if you are reading this could you check this change is OK ;) cheers si diff -urN -X /home/spse/dontdiff linux-2.5.4-pre2/drivers/usb/usbvideo.c linux-2.5.4-pre2-konicawc/drivers/usb/usbvideo.c --- linux-2.5.4-pre2/drivers/usb/usbvideo.c Thu Feb 7 21:46:14 2002 +++ linux-2.5.4-pre2-konicawc/drivers/usb/usbvideo.c Fri Feb 8 00:53:18 2002 @@ -791,6 +791,10 @@ cams->cb.getFrame = usbvideo_GetFrame; if (cams->cb.disconnect == NULL) cams->cb.disconnect = usbvideo_Disconnect; + if (cams->cb.startDataPump == NULL) + cams->cb.startDataPump = usbvideo_StartDataPump; + if (cams->cb.stopDataPump == NULL) + cams->cb.stopDataPump = usbvideo_StopDataPump; #if USES_PROC_FS /* * If both /proc fs callbacks are NULL then we assume that the driver @@ -963,7 +967,7 @@ uvd->remove_pending = 1; /* Now all ISO data will be ignored */ /* At this time we ask to cancel outstanding URBs */ - usbvideo_StopDataPump(uvd); + GET_CALLBACK(uvd, stopDataPump)(uvd); for (i=0; i < USBVIDEO_NUMSBUF; i++) usb_free_urb(uvd->sbuf[i].urb); @@ -1299,7 +1303,7 @@ if (errCode == 0) { /* Start data pump if we have valid endpoint */ if (uvd->video_endp != 0) - errCode = usbvideo_StartDataPump(uvd); + errCode = GET_CALLBACK(uvd, startDataPump)(uvd); if (errCode == 0) { if (VALID_CALLBACK(uvd, setupOnOpen)) { if (uvd->debug > 1) @@ -1349,8 +1353,8 @@ if (uvd->debug > 1) info("%s($%p)", proc, dev); - down(&uvd->lock); - usbvideo_StopDataPump(uvd); + down(&uvd->lock); + GET_CALLBACK(uvd, stopDataPump)(uvd); usbvideo_rvfree(uvd->fbuf, uvd->fbuf_size); uvd->fbuf = NULL; RingQueue_Free(&uvd->dp); diff -urN -X /home/spse/dontdiff linux-2.5.4-pre2/drivers/usb/usbvideo.h linux-2.5.4-pre2-konicawc/drivers/usb/usbvideo.h --- linux-2.5.4-pre2/drivers/usb/usbvideo.h Thu Feb 7 21:45:59 2002 +++ linux-2.5.4-pre2-konicawc/drivers/usb/usbvideo.h Thu Feb 7 23:15:50 2002 @@ -269,6 +269,8 @@ int (*getFrame)(uvd_t *, int); int (*procfs_read)(char *page,char **start,off_t off,int count,int *eof,void *data); int (*procfs_write)(struct file *file,const char *buffer,unsigned long count,void *data); + int (*startDataPump)(uvd_t *uvd); + void (*stopDataPump)(uvd_t *uvd); } usbvideo_cb_t; struct s_usbvideo_t { _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
