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\
