static int mma7660_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
unsigned long arg)
{
void __user *argp = (void __user *)arg;
char msg[RBUFF_SIZE + 1];
int ret = -1;
char rate;
struct i2c_client *client = container_of(mma7660_device.parent, struct i2c_client, dev);
switch (cmd) {
case MMA_IOCTL_APP_SET_RATE:
if (copy_from_user(&rate, argp, sizeof(rate)))
return -EFAULT;
break;
default:
break;
}
switch (cmd) {
case MMA_IOCTL_START:
ret = mma7660_start(client, MMA7660_RATE_32);
if (ret < 0)
return ret;
break;
case MMA_IOCTL_CLOSE:
ret = mma7660_close(client);
if (ret < 0)
return ret;
break;
case MMA_IOCTL_APP_SET_RATE:
ret = mma7660_reset_rate(client, rate);
if (ret < 0)
return ret;
break;
/*
case MMA_IOCTL_GETDATA:
ret = mma7660_trans_buff(msg, RBUFF_SIZE);
if (ret < 0)
return ret;
break;
*/
default:
return -ENOTTY;
}
switch (cmd) {
case MMA_IOCTL_GETDATA:
if (copy_to_user(argp, &msg, sizeof(msg)))
return -EFAULT;
break;
default:
break;
}
return 0;
}
static long mma7660_ioctl( struct file *file, unsigned int cmd,unsigned long arg)
{
void __user *argp = (void __user *)arg;
// char msg[RBUFF_SIZE + 1];
int ret = -1;
char rate;
struct i2c_client *client = container_of(mma7660_device.parent, struct i2c_client, dev);
WPRINTK("%s-%d: cmd = %d\n", __FUNCTION__, __LINE__, cmd);
switch (cmd) {
case MMA_IOCTL_APP_SET_RATE:
if (copy_from_user(&rate, argp, sizeof(rate)))
return -EFAULT;
break;
default:
break;
}
switch (cmd) {
case MMA_IOCTL_START:
WPRINTK("%s-%d: start\n", __FUNCTION__, __LINE__);
ret = mma7660_start(client, MMA7660_RATE_32);
if (ret < 0)
return ret;
break;
case MMA_IOCTL_CLOSE:
WPRINTK("%s-%d: close\n", __FUNCTION__, __LINE__);
ret = mma7660_close(client);
if (ret < 0)
return ret;
break;
case MMA_IOCTL_APP_SET_RATE:
WPRINTK("%s-%d: set rate = %d\n", __FUNCTION__, __LINE__, rate);
ret = mma7660_reset_rate(client, rate);
if (ret < 0)
return ret;
break;
/*
case MMA_IOCTL_GETDATA:
ret = mma7660_trans_buff(msg, RBUFF_SIZE);
if (ret < 0)
return ret;
break;
*/
default:
return -ENOTTY;
}
/*
switch (cmd) {
case MMA_IOCTL_GETDATA:
WPRINTK("%s-%d: get data\n", __FUNCTION__, __LINE__);
if (copy_to_user(argp, &msg, sizeof(msg)))
return -EFAULT;
break;
default:
break;
}*/
return 0;
}
