diff options
Diffstat (limited to 'linux/drivers/media/video/gspca/gspca.c')
| -rw-r--r-- | linux/drivers/media/video/gspca/gspca.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/linux/drivers/media/video/gspca/gspca.c b/linux/drivers/media/video/gspca/gspca.c index d629ce1dc..cfd27161b 100644 --- a/linux/drivers/media/video/gspca/gspca.c +++ b/linux/drivers/media/video/gspca/gspca.c @@ -486,14 +486,14 @@ static struct usb_host_endpoint *get_ep(struct gspca_dev *gspca_dev) i = gspca_dev->alt; /* previous alt setting */ /* try isoc */ - while (--i > 0) { /* alt 0 is unusable */ + while (--i >= 0) { ep = alt_xfer(&intf->altsetting[i], USB_ENDPOINT_XFER_ISOC); if (ep) break; } - /* if no isoc, try bulk */ + /* if no isoc, try bulk (alt 0 only) */ if (ep == NULL) { ep = alt_xfer(&intf->altsetting[0], USB_ENDPOINT_XFER_BULK); @@ -501,6 +501,8 @@ static struct usb_host_endpoint *get_ep(struct gspca_dev *gspca_dev) err("no transfer endpoint found"); return NULL; } + i = 0; + gspca_dev->bulk = 1; } PDEBUG(D_STREAM, "use alt %d ep 0x%02x", i, ep->desc.bEndpointAddress); @@ -527,7 +529,7 @@ static int create_urbs(struct gspca_dev *gspca_dev, /* calculate the packet size and the number of packets */ psize = le16_to_cpu(ep->desc.wMaxPacketSize); - if (gspca_dev->alt != 0) { /* isoc */ + if (!gspca_dev->bulk) { /* isoc */ /* See paragraph 5.9 / table 5-11 of the usb 2.0 spec. */ psize = (psize & 0x07ff) * (1 + ((psize >> 11) & 3)); @@ -627,7 +629,7 @@ static int gspca_init_transfer(struct gspca_dev *gspca_dev) goto out; /* clear the bulk endpoint */ - if (gspca_dev->alt == 0) /* if bulk transfer */ + if (gspca_dev->bulk) usb_clear_halt(gspca_dev->dev, gspca_dev->urb[0]->pipe); @@ -640,7 +642,7 @@ static int gspca_init_transfer(struct gspca_dev *gspca_dev) gspca_dev->streaming = 1; /* some bulk transfers are started by the subdriver */ - if (gspca_dev->alt == 0 && gspca_dev->cam.bulk_nurbs == 0) + if (gspca_dev->bulk && gspca_dev->cam.bulk_nurbs == 0) break; /* submit the URBs */ @@ -775,7 +777,6 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, fmtdesc->pixelformat = fmt_tb[index]; if (gspca_is_compressed(fmt_tb[index])) fmtdesc->flags = V4L2_FMT_FLAG_COMPRESSED; - fmtdesc->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; fmtdesc->description[0] = fmtdesc->pixelformat & 0xff; fmtdesc->description[1] = (fmtdesc->pixelformat >> 8) & 0xff; fmtdesc->description[2] = (fmtdesc->pixelformat >> 16) & 0xff; @@ -972,8 +973,6 @@ static int vidioc_querycap(struct file *file, void *priv, struct gspca_dev *gspca_dev = priv; int ret; - memset(cap, 0, sizeof *cap); - /* protect the access to the usb device */ if (mutex_lock_interruptible(&gspca_dev->usb_lock)) return -ERESTARTSYS; @@ -1145,6 +1144,7 @@ static int vidioc_enum_input(struct file *file, void *priv, if (input->index != 0) return -EINVAL; input->type = V4L2_INPUT_TYPE_CAMERA; + input->status = gspca_dev->cam.input_flags; strncpy(input->name, gspca_dev->sd_desc->name, sizeof input->name); return 0; @@ -1351,7 +1351,6 @@ static int vidioc_g_parm(struct file *filp, void *priv, { struct gspca_dev *gspca_dev = priv; - parm->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; parm->parm.capture.readbuffers = gspca_dev->nbufread; if (gspca_dev->sd_desc->get_streamparm) { |