At Sun, 15 May 2011 18:31:47 +0200, Jörn Nettingsmeier wrote:
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.
This was also in the older version, and the structure wasn't changed for compatibility reason.
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?
Well, consider GET_STATUS as a kind of extended attributes.
Takashi