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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-04 08:52:14 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-04 08:52:14 +0100 |
| commit | cb9c34e6d090d376b77becaa5d29a65dec7f4272 (patch) | |
| tree | 3678abce20d6825aebe3fec218057d4131e13fd6 /drivers/media/video/em28xx/em28xx.h | |
| parent | 470c66239ef0336429b35345f3f615d47341e13b (diff) | |
| parent | 061e41fdb5047b1fb161e89664057835935ca1d2 (diff) | |
| download | lwn-cb9c34e6d090d376b77becaa5d29a65dec7f4272.tar.gz lwn-cb9c34e6d090d376b77becaa5d29a65dec7f4272.zip | |
Merge commit 'v2.6.28-rc7' into core/locking
Diffstat (limited to 'drivers/media/video/em28xx/em28xx.h')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 82781178e0a3..5956e9b3062f 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -102,6 +102,9 @@ #define EM28XX_MIN_BUF 4 #define EM28XX_DEF_BUF 8 +/*Limits the max URB message size */ +#define URB_MAX_CTRL_SIZE 80 + /* Params for validated field */ #define EM28XX_BOARD_NOT_VALIDATED 1 #define EM28XX_BOARD_VALIDATED 0 @@ -430,6 +433,7 @@ struct em28xx { /* locks */ struct mutex lock; + struct mutex ctrl_urb_lock; /* protects urb_buf */ /* spinlock_t queue_lock; */ struct list_head inqueue, outqueue; wait_queue_head_t open, wait_frame, wait_stream; @@ -451,6 +455,8 @@ struct em28xx { unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ struct urb *urb[EM28XX_NUM_BUFS]; /* urb for isoc transfers */ char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */ + char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */ + /* helper funcs that call usb_control_msg */ int (*em28xx_write_regs) (struct em28xx *dev, u16 reg, char *buf, int len); |