These api's are used to communicate to the i/o ports here the address bits can range from 8/16/32 bits.(for ex: serial port,parallel port etc). Try to have a look at the understanding of the i/o mapped i/o(inb,outb) and the memory mapped i/o(readb,writeb) concepts. Iqbal On Tue, 2003-01-21 at 11:33, Anticipating a Reply wrote: > > Hi , > > I wanted to know where the functions > "inb","outb" , ...etc . > > I checked out the below file : > /usr/src/linux/include/asm-i386/io.h > which has comment saying definitions are > in that file , but I could not understand it . > > Kindly please help me understand how this works . > > Thanks in advance . > > Regards ! > > > > ________________________________________________________________________ > Missed your favourite TV serial last night? Try the new, Yahoo! TV. > visit http://in.tv.yahoo.com > -- > Kernelnewbies: Help each other learn about the Linux kernel. > Archive: http://mail.nl.linux.org/kernelnewbies/ > FAQ: http://kernelnewbies.org/faq/ > > -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
