From: James McBride (lgpvhtlv@teleca.com)
Date: Sun Oct 08 2000 - 10:12:06 EEST
Hi all,
The fix below from Tihomir works fine. Maybe it is just my TNC which is
running TNC-2 118a TAPR s/w in KISS mode. The checksum characters are now
gone and people can log in using AX25.
The sound drivers still don't work and the errors I get from trying to
insmod sound are:
unresolved symbols in module /misc.sound.o :
(unregister/register)_sound_(mixer/dsp/midi)_Rxxxxxxxx
The bracketed names are to summarise all the combinations... I haven't
copied and pasted....
I am trying to use a PSA style soundcard. Maybe this doesn't work. I will
try working on it some more. Anyone have any ideas?
Regards
James McBride
VK6FJA
>Hi
>
>If I am right you have the same problem as I had.
>It works some time but after random interval it starts to send checksum.
>Kernel mkiss driver when receive packet with flexnet crc switch itself
>to flexnet crc. It can also occure when there is errors on kiss link
>(wire) so it think that have flexnet crc. And then there no way to switch
back
>to normal mode.
>
>Solution:
>Edit file /usr/src/linux/drivers/net/hamadio/mkiss.c
>in line 351 you will find:
>ax->crcmode = CRC_MODE_FLEX;
>simply comment that line like this
>or just remove that line.
>This way you make mkiss unable to switch to CRC mode.
>Now you need to recompile kernel and modules. Do not forget "make clean"
>so the new mkiss.c will be made.
>
>73 de Tihomir, terhi.victor@logonet.com
>
>Hi
>I currently have been trying to get a RedHat 6 based system with a Kernel
>2.2.17 upgrade working with a KISS TNC and it is all configured okay, but
>for some reason after an initial connect, each time I send some plain text,
>the packet appears to have another 2 characters appended to it after an
>end-of-line, so if for instance I enter a command like 'B' to my local BBS
>here, it appears at the other end to be something like 'UB' and is not
>understood. The 'B' is still there, but the extra characters in the packet
>cause it to have a frame problem.... the next few times you enter 'B', you
>get a response for say 'UB', ':B','YB' and 'TB' or something afterwhich the
>sequence repeats starting with 'UB'... To me it looks like the kernel is
>sending out a checksum or something that it shouldn't, but I am not a C
>source expert by any means - far from it.
>
>Also if someone connects to me, axspawn runs here, but they get a frame
>error sent back to them (probably with the extra characters!) and can't
>login properly. I receive all packets okay.
>
>An AXIP ping also seems to work once after a fresh restart of the system,
>but will not generate a response afterwards. My 'listen' screen shows an
ARP
>received once from the other station, but then it just doesn't respond.
>
>I don't know if there is enough information here, but does anyone recognise
>this symptom?
>
>I have kernel 2.2.17, libax25-0.0.7, ax25-tools-0.0.5, ax25-apps-0.0.4 on a
>Pentium 100, with KISS on serial port compiled into the kernel (not a
>module)
>
>I also haven't got the OSS sound modules to load properly yet and don't
seem
>to find a kernel configuration entry for '/dev/dsp and /dev/audio' support
>like there was in the 2.0.34/2.0.35 kernels. I have only ever had a 9600bps
>soundcard based modem running on kernel 2.0.35 with a SoundBlasterPro card.
>I am yet to try the new drivers (when the sound config works) and also the
>NewQPSK mode.
>
>Alot of interesting things in this newsgroup though... and for those in
West
>Australia, see you at the Hamfest on Oct 29.
>
>Regards
>James McBride VK6FJA
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