static __init int register_proc(void)
{
unsigned char i;
unsigned int flag = 0;
char proc_name[64];
int gpiocount = MAXGPIO;
/* create directory gpio */
gpio_dir = proc_mkdir("gpio", NULL);
if (gpio_dir == NULL)
goto fault;
for (i = 0; i < gpiocount * 3; i++) //create for every GPIO "x_in"," x_out" and "x_dir"
{
if (i / gpiocount == 0) {
flag = GPIO_IN;
sprintf(proc_name, "%i_in", i);
}
if (i / gpiocount == 1) {
flag = GPIO_OUT;
sprintf(proc_name, "%i_out", i % gpiocount);
}
if (i / gpiocount == 2) {
flag = GPIO_DIR;
sprintf(proc_name, "%i_dir", i % gpiocount);
}
proc_gpio = create_proc_entry(proc_name, S_IRUGO, gpio_dir);
if (proc_gpio) {
proc_gpio->read_proc = gpio_proc_read;
proc_gpio->write_proc = gpio_proc_write;
//proc_gpio->owner = THIS_MODULE;
proc_gpio->data = (void *)((i % gpiocount) | flag);
} else
goto fault;
}
printk(KERN_NOTICE
"gpio_proc: module loaded and /proc/gpio/ created\n");
return 0;
fault:
cleanup_proc();
return -EFAULT;
}
static __init int register_proc(void)
{
unsigned char i, flag = 0;
char proc_name[32];
int gpiocount = 32;
/* create directory gpio */
gpio_dir = proc_mkdir("gpio", NULL);
if (gpio_dir == NULL)
goto fault;
// gpio_dir->owner = THIS_MODULE;
for (i = 0; i < gpiocount * 3; i++) //create for every GPIO "x_in"," x_out" and "x_dir"
{
if (i / gpiocount == 0) {
flag = GPIO_IN;
sprintf(proc_name, "%i_in", i);
}
if (i / gpiocount == 1) {
flag = GPIO_OUT;
sprintf(proc_name, "%i_out", i % gpiocount);
}
if (i / gpiocount == 2) {
flag = GPIO_DIR;
sprintf(proc_name, "%i_dir", i % gpiocount);
}
proc_gpio = proc_create_data(proc_name, S_IRUGO, gpio_dir, &fops_data, ((i % gpiocount) | flag));
}
proc_gpio = proc_create("info", S_IRUGO, gpio_dir, &fops_info);
printk(KERN_NOTICE "gpio_proc: module loaded and /proc/gpio/ created\n");
ar71xx_gpio_init();
return 0;
fault:
cleanup_proc();
return -EFAULT;
}
static void __exit keypad_qxdm_exit(void)
{
printk(KERN_INFO "%s: keypad_qxdm driver has been unloaded.\n", __func__);
cleanup_proc();
return;
}
