Re: Control TLV extension - final proposal

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At Wed, 28 Jun 2006 13:57:50 +0200 (CEST),
Jaroslav Kysela wrote:
> 
> Hi,
> 
> 	here is the final TLV update. The patch bellow will add:
> 
> - TLV write support
> - TLV callback mechanism for lowlevel drivers
> - TLV change notification
> - TLV ioctl support for user space control elements

This implementation seems inconsistent.

Suppose you inquire an attribute via TLV_WRITE.  From the apps POV, it
doesn't matter whether the mixer element is user-defined or not.  When
alsa-lib issues ioctl(TLV_WRITE) to a user-defined element, it
replaces the TLV list with the inquiry TLV but cannot return any
useful value.


Takashi

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