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| author | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-07-29 15:41:40 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2006-07-29 15:41:40 -0300 |
| commit | 9a9f822910db8450c5478fd7146b5b52088d7aaa (patch) | |
| tree | 9b588f2096c3b7351e4c127a2c8ffbc8b45a6c55 /linux/drivers/media/dvb/dvb-core/dvbdev.h | |
| parent | 7272f8f51ed77805115b9716b72ab4b6d3db0049 (diff) | |
| parent | f7eb6e544385a7d7a594e4bedb982e39a500a838 (diff) | |
| download | mediapointer-dvb-s2-9a9f822910db8450c5478fd7146b5b52088d7aaa.tar.gz mediapointer-dvb-s2-9a9f822910db8450c5478fd7146b5b52088d7aaa.tar.bz2 | |
merge: http://linuxtv.org/hg/~quincy/v4l-dvb-attach
From: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'linux/drivers/media/dvb/dvb-core/dvbdev.h')
| -rw-r--r-- | linux/drivers/media/dvb/dvb-core/dvbdev.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/linux/drivers/media/dvb/dvb-core/dvbdev.h b/linux/drivers/media/dvb/dvb-core/dvbdev.h index 1e7c036d5..26e4a9135 100644 --- a/linux/drivers/media/dvb/dvb-core/dvbdev.h +++ b/linux/drivers/media/dvb/dvb-core/dvbdev.h @@ -103,4 +103,26 @@ extern int dvb_usercopy(struct inode *inode, struct file *file, int (*func)(struct inode *inode, struct file *file, unsigned int cmd, void *arg)); +/** generic DVB attach function. */ +#ifdef CONFIG_DVB_CORE_ATTACH +#define dvb_attach(FUNCTION, ARGS...) ({ \ + void *__r = NULL; \ + typeof(&FUNCTION) __a = symbol_request(FUNCTION); \ + if (__a) { \ + __r = (void *) __a(ARGS); \ + if (__r == NULL) \ + symbol_put(FUNCTION); \ + } else { \ + printk(KERN_ERR "DVB: Unable to find symbol "#FUNCTION"()\n"); \ + } \ + __r; \ +}) + +#else +#define dvb_attach(FUNCTION, ARGS...) ({ \ + FUNCTION(ARGS); \ +}) + +#endif + #endif /* #ifndef _DVBDEV_H_ */ |