> Hello All, > > I have a 8270 based board running Linux 2.6. I am using the i2c > available on chip to read / write a i2c mux connected to it. When I > open the i2c device, it returns 0 (which shouldnt be) instead of the > file descriptor. The /proc/devices shows the i2c driver with major > 89 is installed.
Does your program close all it's file descriptors before opening the i2c device? 0 is a valid file descriptor. It's just normally used by STDIN. If a program closes or doesn't inherit STDIN for some reason, 0 becomes available. josh
