static long snd_pcm_capture_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { struct snd_pcm_file *pcm_file;
pcm_file = file->private_data; if (((cmd >> 8) & 0xff) != 'A') return -ENOTTY; return snd_pcm_capture_ioctl1(file, pcm_file->substream, cmd, (void __user *)arg);
}