static long capella_cm3602_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int val;
D("%s cmd %d\n", __func__, _IOC_NR(cmd));
switch (cmd) {
case CAPELLA_CM3602_IOCTL_ENABLE:
if (get_user(val, (unsigned long __user *)arg))
return -EFAULT;
if (val)
return capella_cm3602_enable(&the_data);
else
return capella_cm3602_disable(&the_data);
break;
case CAPELLA_CM3602_IOCTL_GET_ENABLED:
return put_user(the_data.enabled, (unsigned long __user *)arg);
break;
default:
pr_err("%s: invalid cmd %d\n", __func__, _IOC_NR(cmd));
return -EINVAL;
}
}
static ssize_t capella_cm3602_store(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count
)
{
ssize_t val;
val = -1;
sscanf(buf, "%u", &val);
if (val < 0 || val > 1)
return -EINVAL;
/* Enable capella_cm3602*/
if (val == 1)
capella_cm3602_enable(&the_data);
/* Disable capella_cm3602*/
if (val == 0)
capella_cm3602_disable(&the_data);
return count;
}