UDEV on FC5

Peter Gordon peter at thecodergeek.com
Mon May 1 05:02:36 UTC 2006


Karl Larsen wrote:
>    Hi Peter I did make my user name karl a member of uucp but it still 
> can't use /dev/ttyS0 for some reason. 
Hmm. Group changes usually require you to log out and log back in again 
to take effect. Have you tried this?

> Also it complains that /dev/dsp is 
> busy and can't be used. Does that make sense?
/dev/dsp is for the deprecated OSS/Free sound drivers ("Open Sound 
System"). OSS/Free had no method of mixing sound if the hardware does 
not support it. Thus, if one program is using the sound device, it 
blocks sound I/O from other programs. Its successor, ALSA ("Advanced 
Linux Sound Architecture") does sound mixing by default (in hardware if 
its capable, otherwise through a software system called dmix), which 
means that this is no longer a problem in most - if not all - cases.


-- 
Peter Gordon (codergeek42)
GnuPG Public Key ID: 0xFFC19479 / Fingerprint:
   DD68 A414 56BD 6368 D957 9666 4268 CB7A FFC1 9479

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