Hi
I am able to use the serialport uart drivers for the custom board with
mpc860T
which are available in the kernel 2.6.13
I am getting bootup messages like this
ttyCPM0 at MMIO 0xfb000a80 (irq = 20) is a CPM UART
ttyCPM1 at MMIO 0xfb000a90 (irq = 19) is a CPM UART
ttyCPM2 at MMIO 0xfb000a00 (irq = 46) is a CPM UART
ttyCPM3 at MMIO 0xfb000a20 (irq = 45) is a CPM UART
And after getting prompt
cd /proc/dev/
cat drivers
/dev/tty /dev/tty 5 0 system:/dev/tty
/dev/console /dev/console 5 1 system:console
/dev/ptmx /dev/ptmx 5 2 system
ttyCPM /dev/ttyCPM 204 46-49 serial
pty_slave /dev/pts 136 0-1048575 pty:slave
pty_master /dev/ptm 128 0-1048575 pty:master
I am using mknod command
mknod /dev/ttyCPM0 c 204 46
mknod /dev/ttyCPM1 c 204 47
mknod /dev/ttyCPM2 c 204 48
mknod /dev/ttyCPM3 c 204 49
even I am not able to open the device from the user space application
I want to write some data from the user space into the
application
But I am not able to open the device
please help me out
regards
bharathi
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