diff options
Diffstat (limited to 'drivers/media/usb/em28xx/em28xx.h')
| -rw-r--r-- | drivers/media/usb/em28xx/em28xx.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h index f5be5229f30..aa413bd76de 100644 --- a/drivers/media/usb/em28xx/em28xx.h +++ b/drivers/media/usb/em28xx/em28xx.h @@ -165,6 +165,12 @@ #define EM28XX_NUM_ISOC_PACKETS 64 #define EM28XX_DVB_NUM_ISOC_PACKETS 64 +/* bulk transfers: transfer buffer size = packet size * packet multiplier + USB 2.0 spec says bulk packet size is always 512 bytes + */ +#define EM28XX_BULK_PACKET_MULTIPLIER 384 +#define EM28XX_DVB_BULK_PACKET_MULTIPLIER 384 + #define EM28XX_INTERLACED_DEFAULT 1 /* @@ -584,8 +590,14 @@ struct em28xx { /* usb transfer */ struct usb_device *udev; /* the usb device */ + u8 analog_ep_isoc; /* address of isoc endpoint for analog */ + u8 analog_ep_bulk; /* address of bulk endpoint for analog */ + u8 dvb_ep_isoc; /* address of isoc endpoint for DVB */ + u8 dvb_ep_bulk; /* address of bulk endpoint for DVC */ int alt; /* alternate setting */ int max_pkt_size; /* max packet size of the selected ep at alt */ + int packet_multiplier; /* multiplier for wMaxPacketSize, used for + URB buffer size definition */ int num_alt; /* number of alternative settings */ unsigned int *alt_max_pkt_size_isoc; /* array of isoc wMaxPacketSize */ unsigned int analog_xfer_bulk:1; /* use bulk instead of isoc |