debugging kernel programming (dvice driver)

joecole10 · 03-20-2008, 10:50 AM

1_I start to write device driver(char device) but iwant to debug the code imean before compiling it by the make files
2_the values return by read or write how can i know it
thanks in advance

digvijay.gahlot · 03-21-2008, 02:53 AM

Quote:

Originally Posted by joecole10

1_I start to write device driver(char device) but iwant to debug the code imean before compiling it by the make files
2_the values return by read or write how can i know it
thanks in advance

Before compiling it. I didn't get u. At least one should compile it then you can debug it with gdb.

ashok449 · 03-26-2008, 11:53 PM

use retrun valuse for each function/system call and print it using printk

you can see all messages using #dmesg command