Re: [alsa-devel] ioctl(fd, SNDRV_CTL_IOCTL_ELEM_REPLACE, ... not working from userspace ?

3 Jul 2017


      Fulup Ar Foll wrote:
...
Looking at this code I do not understand why the replace iotcl is refused.
if (!(kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_USER)) {
    	ret = -EINVAL;
Kernel drivers do not expect that their own controls change.
Regards,
Clemens

Clemens Ladisch

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