> -----Original Message----- > From: Takashi Sakamoto [mailto:o-takashi@xxxxxxxxxxxxx] > Sent: Monday, July 18, 2016 11:43 AM > I know all of what you explained. Therefore, You misunderstand about my > suggestion. > > What I suggested is to drop a support of SNDRV_CTL_ELEM_ACCESS_USER > flag from current topology implementation in userspace library, because > current implementation of ALSA SoC part doesn't support it. > > In ALSA SoC part, snd_ctl_new1() is called to add a control element set as a > result of parsing binary blob generated by topology implementation. > > In snd_ctl_new1(), SNDRV_CTL_ELEM_ACCESS_USER flag is dropped, in these > lines: > http://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/tree/sound/core/c > ontrol.c#n263 > > Totally, the flag cannot be supported by current implementation of topology > in kernel. Thus, in userspace, we should drop this line to prevent users from > confusions: > http://git.alsa-project.org/?p=alsa-lib.git;a=blob;f=src/topology/ctl.c;h=b94 > 8ac021ceecc116bc1087075743243e4b14055;hb=HEAD#l44 > > That's all what I mentioned. If something unclear, please tell it to me. Yes, you're right. snd_ctl_new1() dropped SNDRV_CTL_ELEM_ACCESS_USER flag. I'll remove this from the topology user space tool to avoid confusion. Thanks again Mengdong _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
