hdspm.c - confused about SNDRV_HDSPM_IOCTL_GET_[CONFIG|STATUS]

From: "Jörn Nettingsmeier" <nettings@stackingdwarves.net>
To: alsa-devel@alsa-project.org, Adrian Knoth <adi@drcomp.erfurt.thur.de>
Cc: "Jörn Nettingsmeier" <nettings@stackingdwarves.net>
Subject: hdspm.c - confused about SNDRV_HDSPM_IOCTL_GET_[CONFIG|STATUS]
Date: Sun, 15 May 2011 18:31:47 +0200	[thread overview]
Message-ID: <4DCFFFF3.4000502@stackingdwarves.net> (raw)

hi *!

i'm trying to extend hdspconf to work with the rme hdspm madi card, and 
got confused over the snd_hdspm_hwdep_ioctl:

apparently, the hdspm.c driver differentiates between settable controls 
(CONFIG) and non-settable status indicators (STATUS), unlike the earlier 
hdspm.c.

however, usage seems a bit inconsistent:

struct hdspm_config contains a member madi_sync_check, which is 
apparently never set.
instead, struct hdspm_status card_specific.sync_madi is used, same for 
tco and sync in.

but there is a wordclock_sync_check in struct hdspm_config which is in use.

am i guessing right that the latter is somewhat deprecated and that i 
should be taking all status values from struct hdspm_status instead?

thanks,

jörn

please cc: me, i'm not on alsa.devel.

-- 
Jörn Nettingsmeier
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