Hi, i am new to embedded linux.
currently working with linux on AT91RM9200DK evaluation board from Atmel. I am facing some problem in using available device driver like that of RTC,serial port,Pio
etc.
My question is: How can i know about the functions offered by a particular driver? For example, consider serial port, here I have following drivers routine available:
.../linux-2.4.19-rmk7/driver/at91/drivers/serial/at91_serial.c .../linux-2.4.19-rmk7/driver/char/serial.c
many other routines are also there in char directory. I am unable to undersatnd which routine has to be called first?
at91_serial.c OR char/serial.c ???
I tried to google about the problem but could not find much. Can someone suggest me a
suitable link,thread or books where i can find some info about these matters.
thanx in advance ved