hi,
i am a linux newbie and do not understand what the /proc interface is meant for. any of you out there got some solid stuff on this, id like to hear. its being used in some device driver i am trying to understnd, and used as :

*spca50x_proc_entry = NULL;
#ifdef CONFIG_VIDEO_PROC_FS
extern struct proc_dir_entry *video_proc_entry;
#endif /* CONFIG_VIDEO_PROC_FS */

#define YES_NO(x) ((x) ? "yes" : "no")

if anyone has got any idea on this one please help me out!!!!

thanking you

vaishakh