diff options
Diffstat (limited to 'drivers/media/video/gspca/gspca.h')
| -rw-r--r-- | drivers/media/video/gspca/gspca.h | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h index c17625cff9ba..4779dd0b06da 100644 --- a/drivers/media/video/gspca/gspca.h +++ b/drivers/media/video/gspca/gspca.h @@ -49,13 +49,14 @@ extern int gspca_debug; } while (0) #define GSPCA_MAX_FRAMES 16 /* maximum number of video frame buffers */ -/* ISOC transfers */ -#define MAX_NURBS 16 /* max number of URBs */ +/* image transfers */ +#define MAX_NURBS 4 /* max number of URBs */ #define ISO_MAX_PKT 32 /* max number of packets in an ISOC transfer */ #define ISO_MAX_SIZE 0x8000 /* max size of one URB buffer (32 Kb) */ /* device information - set at probe time */ struct cam { + int bulk_size; /* buffer size when image transfer by bulk */ struct v4l2_pix_format *cam_mode; /* size nmodes */ char nmodes; __u8 epaddr; @@ -93,7 +94,7 @@ struct sd_desc { /* mandatory operations */ cam_cf_op config; /* called on probe */ cam_op init; /* called on probe and resume */ - cam_v_op start; /* called on stream on */ + cam_op start; /* called on stream on */ cam_pkt_op pkt_scan; /* optional operations */ cam_v_op stopN; /* called on stream off - main alt */ @@ -105,10 +106,12 @@ struct sd_desc { }; /* packet types when moving from iso buf to frame buf */ -#define DISCARD_PACKET 0 -#define FIRST_PACKET 1 -#define INTER_PACKET 2 -#define LAST_PACKET 3 +enum gspca_packet_type { + DISCARD_PACKET, + FIRST_PACKET, + INTER_PACKET, + LAST_PACKET +}; struct gspca_frame { __u8 *data; /* frame buffer */ @@ -121,6 +124,7 @@ struct gspca_dev { struct video_device vdev; /* !! must be the first item */ struct file_operations fops; struct usb_device *dev; + struct kref kref; struct file *capt_file; /* file doing video capture */ struct cam cam; /* device information */ @@ -173,10 +177,11 @@ int gspca_dev_probe(struct usb_interface *intf, struct module *module); void gspca_disconnect(struct usb_interface *intf); struct gspca_frame *gspca_frame_add(struct gspca_dev *gspca_dev, - int packet_type, + enum gspca_packet_type packet_type, struct gspca_frame *frame, const __u8 *data, int len); +struct gspca_frame *gspca_get_i_frame(struct gspca_dev *gspca_dev); #ifdef CONFIG_PM int gspca_suspend(struct usb_interface *intf, pm_message_t message); int gspca_resume(struct usb_interface *intf); |