[問題] ADC Driver ioctl的問題

[aup65797 (有緣人)]

程式如下:

http://codepad.org/puqwVR0K

疑問是程式為何不會跑到adc_ioctl這個函式裡頭

我把driver裡的read函式用adc_ioctl取代

static const struct file_operations adc_fops = {
   .owner    = THIS_MODULE,
   .open   = adc_open,
    .ioctl = adc_ioctl,
   .read = adc_read,
   .release  = adc_release,
};

有call到adc_ioctl副函式可是沒跑進去>"<

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