I have an ioctl question.
My user app wants to write to a memory location nad
ahve the kernel driver for this. I need to pass the
memory location which is 4 bytes.
#define MEM_WRITE _IOW(DRIVER,2,unsigned char *)
unsigned char cal[3] = {0x00,0x00,0x00,0xea};
I used ioctl(fd,MEM_WRITE,val);
Inside my driver ioctl code I'm getting the size of
val as 2 instead of 4.
Am I doing soemthing wrong?
Thanks in advance
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