UDEV on FC5

[Karl F. Larsen]

Peter Gordon wrote:

> 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?
>
    Yes I did and know the change in /dev/ttyS0 does work fine. Thank you.

>> 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.

    It is a problem for this application. The software is called gMFSK 
and it has many digital devices that use the sound card DSP engine to 
make the transmitter and receiver. I have several other applications 
using the DSP and they all fail to function on FC5. This is why I have 
gone back to FC2. Everything works fine on this version  of Fedora. You 
can read about gMFSK by just putting that in Google.

Karl\

>
>