On Tuesday 10 August 2004 13:06, Gaurav Dhiman wrote: > - I am reading the 6th chapter of Rubini's book (LDD), want to know > about the internals of udelay() function. How this function exactly > works, I saw its code at following link: > http://lxr.linux.no/source/include/asm-i386/delay.h?v=2.4.21#L18 but > cud not understand it as I am not able to find the definations of > __bad_ndelay and all other realted functions. The deceleration has > been given just before the defination of udelay() function, dont know > where the definition is. To answer one of your questions. __bad_ndelay() and __bad_udelay() routines don't exist. The references are there only to trigger a link error if you have a ndelay() or udelay() with a constant argument that is excessive (i.e. >20000). -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
