Hello,
My lcd device is via MPC850 parport(because my lcd display screen is
small).I write my own driver for it.Here is my do.
in .config file,I add
CONFIG_PLCD=y
in drivers/char/Makefile,I add
ifeq(($CONFIG_PLCD),y)
L_OBJS+=plcd.o
endif
in driver/char/mem.c,I add
#ifdef CONFIG_PLCD
plcd_init(); /*in my plcd.c file*/
#endif
At last,i add a new file plcd.c in drivers/char/ .I make zImage again.
I fount plcd.o in drivers/char/.
In my driver plcd_init ,I use printk output some information,
When kernel is run,no information was seen.Writing driver like me is right?
I thank i should see device in /proc/devices,but i could not.I have fill the
each elemnet of struct file_operations.There is noting in boot log,and nothing
in /proc/devices.What can i do?
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