What are the secrets to doing synchronous IO with FreeBSD? I
have this application that I'm writing where I need to play
a WAV file but I need to make sure all the bits are sent on
there way before I move on. The WAV file is being played
through a controller that I have to toggle some bit
In the last episode (Jan 11), Steve Price said:
> What are the secrets to doing synchronous IO with FreeBSD? I have
> this application that I'm writing where I need to play a WAV file but
> I need to make sure all the bits are sent on there way before I move
> on. The WAV fil
On Thu, Jan 11, 2001 at 09:44:49PM -0600, Dan Nelson wrote:
# I don't think you really mean synchronous IO; All you need is some
# buffering. If the toggling you're talking about is direct wave
# generation (i.e. you have to do something for each byte in the sample),
# your time re
> Thanks for the info. I don't think I was very clear in my first
> explanation. I have an RF transmitter that I control via a serial
> port on a FreeBSD box. I also have a sound card in that same
> computer connected to the transmitter. I'm sending commands to
> the transmitter in a sequence
On Fri, Jan 12, 2001 at 12:18:20PM -0800, Mike Smith wrote:
#
# You can ensure the serial output is drained with tcdrain(). There's is
# probably an interface for checking the status of the sound buffer.
Yes, this appears to have done the trick.
# Looking in sys/soundcard.h, I would suggest c
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