I feel we are still thinking in a different way. The separating of volatile data is only access and memory optimization. The code in the control interface uses still linear lookups. Note that there is no restriction to use this "multi" element for matrix only. Then address in
I realized that.
matrix is always mapped to linear one. If you want a gap inside matrix, then set the INACTIVE flag to the access field (volatile data). It's quite
It's not inactive, it does not exists.
complicated to describe such incomplete matrixes in a generic way. Note
? Why complicated?
What about snd_ctl_add_index(ctl, index) (then you can use data tables, loops, wrappers, etc.)
that the whole matrix is still represented as one multi element inside the kernel space (except that volatile data are separate for each value inside matrix).
This is true only for non sparse matrix.
Ortogonally to that, IMO the increasing numbers of controls in modern professional hardware justify the choice of hash table access to controls (try to imagine a 26 channel hardware level meter that need to be polled 50 times per second).
-- Abramo Bagnara mailto:[EMAIL PROTECTED]
Opera Unica Phone: +39.546.656023 Via Emilia Interna, 140 48014 Castel Bolognese (RA) - Italy
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