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authorLinus Torvalds <torvalds@linux-foundation.org>2008-12-02 06:56:34 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2008-12-02 06:56:34 +0300
commit0d815142d1988899c97514a25ce5a9f4880e7fc8 (patch)
treeb20eb59f54c1a015435c20e748d7e4ab09fc5e41 /drivers/media/video/em28xx/em28xx.h
parent9c84ba4e502184d95ab75128d3166f595ea2dea0 (diff)
parenta693b0cdba94f60f7ed43754d2c34151cdd11da5 (diff)
downloadlinux-0d815142d1988899c97514a25ce5a9f4880e7fc8.tar.xz
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (25 commits) em28xx: remove backward compat macro added on a previous fix V4L/DVB (9748): em28xx: fix compile warning V4L/DVB (9743): em28xx: fix oops audio V4L/DVB (9742): em28xx-alsa: implement another locking schema V4L/DVB (9732): sms1xxx: use new firmware for Hauppauge WinTV MiniStick V4L/DVB (9691): gspca: Move the video device to a separate area. V4L/DVB (9690): gspca: Lock the subdrivers via module_get/put. V4L/DVB (9689): gspca: Memory leak when disconnect while streaming. V4L/DVB (9668): em28xx: fix a race condition with hald V4L/DVB (9664): af9015: don't reconnect device in USB-bus V4L/DVB (9647): em28xx: void having two concurrent control URB's V4L/DVB (9646): em28xx: avoid allocating/dealocating memory on every control urb V4L/DVB (9645): em28xx: Avoid memory leaks if registration fails V4L/DVB (9639): Make dib0700 remote control support work with firmware v1.20 V4L/DVB (9635): v4l: s2255drv fix firmware test on big-endian V4L/DVB (9634): Make sure the i2c gate is open before powering down tuner V4L/DVB (9632): make em28xx aux audio input work V4L/DVB (9631): Make s2api work for ATSC support V4L/DVB (9627): em28xx: Avoid i2c register error for boards without eeprom V4L/DVB (9608): Fix section mismatch warning for dm1105 during make ...
Diffstat (limited to 'drivers/media/video/em28xx/em28xx.h')
-rw-r--r--drivers/media/video/em28xx/em28xx.h6
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);