Re: [linux-audio-dev] Re: rtcd vs hz > 100!

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Subject: Re: [linux-audio-dev] Re: rtcd vs hz > 100!
From: Paul Barton-Davis (pbd_AT_Op.Net)
Date: to loka   28 1999 - 22:41:38 EDT


In message <19991028180846.25208.qmail_AT_hyperreal.org>you write:
>Steve Ratcliffe discourseth:
>>
>> For those using ALSA, you can already do this without a user daemon.
>> The timer interface allows more than one process to access the same timer,
>> there is a user interface via open/read of /dev/snd/timer and a kernel
>> interface so that the sequencer can be driven from a better clock than
>> the 10ms system timer. I have a demo timer module that uses the RTC as
>> a loadable ALSA timer.
>
>This sounds better than the rtcd concept. I'm curious what others
>think..and happy I posted a design before coding. :)

i agree. much cleaner. the naming of /dev/snd/timer is the only hint
of audio-relatedness, and i think that *we* can certainly live with
that.

though let me check: after the module opens the RTC, the RTC
is no longer usable directly by any other module or application, right?
does the module have its own RTC driver, or does it use the existing
one via the cross-driver "open/close/read/write" call interface ?

--p


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