Hi John,
i wuold want add a syscall to write 8 or 16 bit on PortG, with
gpiosetbyte like this:
asmlinkage void sys_gpiosetbyte(unsigned char port, unsigned int bits,
int value){
switch(port){
case 'G':
case 'g':
if((bits & 0x0000FF00)==0x0000FF00){
port_g_data_shadow &= ~bits;
value = (value << 8);
*R_PORT_G_DATA = port_g_data_shadow |= value;
};
if((bits & 0x00FF0000)==0x00FF0000){
port_g_data_shadow &= ~bits;
value = (value << 16);
*R_PORT_G_DATA = port_g_data_shadow |= value;
};
break;
case 'A':
case 'a':
case 'B':
case 'b':
break;
}
}
I changed also <gipo_syscall.h> , <unistd.h> but i can't find
<syscall_table.S>
Can you help me?
Thank you
Gabriele
--- In [email protected], [EMAIL PROTECTED] wrote:
>
> what exactly is the syscall supposed to do ?
>
>
>
> Quoting gabrielepinca <[EMAIL PROTECTED]>:
>
> > Someone know how to add system call at the fox? I need for user guide
> > or tutorial... Thank you Gabriele
> >
> >
>
