Skip to contentSkip to conversation

SIOCSIFFLAGS: Input/output error

DISCUSSION Phil 5 participants 6 messages May 7, 2005 – May 10, 2005

lore
Share & tools
lore

Phil

author
#0 lore raw

Hello,

I'm about to do the "Grey Nomad" thing and hit the road in our motorhome. I thought it might be handy to have a packet system to play with.

I'm using a USB to serial converter which works without any problems with other serial devices, however, I get the error message shown on the subject line when I attempt to use my Baycom modem. This is the init script that I've used for years, but with /dev/ttyS0 instead of ttyUSB0:

setserial /dev/ttyUSB0 uart none
modprobe baycom_ser_fdx
sethdlc -p -i bcsf0 mode "ser12*" io 0x3f8 irq 4
ifconfig bcsf0 up
ifconfig bcsf0 10.0.0.1
axparms -setcall bcsf0 VK4BVM

I can see that the lines that begin with "ifconfig bcsf0" are the culprits. I have /etc/ax25/parms/bcf0/. What am I missing?

Signature · 2 lines
Regards,
Phil.
#1 lore raw
Quoted 4 lines · Phil

I'm using a USB to serial converter which works without any problems with other serial devices, however, I get the error message shown on the subject line when I attempt to use my Baycom modem. This is the init script that I've used for years, but with /dev/ttyS0 instead of ttyUSB0:

Baycom serial is not a serial device. It uses the serial port in a very non-standard way to do "clever" bit banging and emulate synchronous serial communication. That is why it only works with ports that are 100% hardware compatible with the standard PC UART (8250, 16450, 16550).

I think it's pretty safe to say that you will *not* find a USB/serial converter that would work with the Baycom serial modem and its kernel driver.

Signature · 1 line
Tomi Manninen / OH2BNS / KP20JF74
#2 lore raw
Quoted 10 lines · Tomi Manninen
Quoted 1 line · Phil

I'm using a USB to serial converter which works without any problems with other serial devices, however, I get the error message shown on the subject line when I attempt to use my Baycom modem. This is the init script that I've used for years, but with /dev/ttyS0 instead of ttyUSB0:

[...]

I think it's pretty safe to say that you will *not* find a USB/serial converter that would work with the Baycom serial modem and its kernel driver.

Another option that might work better than a USB/serial convertor would be a serial PCMCIA interface, they are more likely to be compatible at a hardware level.

					... Niall
author
#3 lore raw
In reply to Tomi Manninen
Quoted 7 lines · you

On Sat, 2005-05-07 at 15:26, Phil wrote:

Baycom serial is not a serial device. It uses the serial port in a very non-standard way to do "clever" bit banging and emulate synchronous serial communication. That is why it only works with ports that are 100% hardware compatible with the standard PC UART (8250, 16450, 16550).

Thanks for the replies, both on and off the mailing list. I thought about this a bit more after I posted my query and thought that the converter had to be the problem.

It looks like my old faithful Baycom modem will join the rest of my stuff in storage. If packet radio grabs my attention again I might have to buy a TNC after all.

Signature · 2 lines
Regards,
Phil.
#4 lore raw
Quoted 3 lines · Phil

It looks like my old faithful Baycom modem will join the rest of my stuff in storage. If packet radio grabs my attention again I might have to buy a TNC after all.

There's always the soundmodem ..

Hamish

Signature · 1 line
Hamish Moffatt VK3SB <[email protected]> <[email protected]>
#5 lore raw
Quoted 8 lines · Hamish Moffatt
Quoted 3 lines · Phil

It looks like my old faithful Baycom modem will join the rest of my stuff in storage. If packet radio grabs my attention again I might have to buy a TNC after all.

There's always the soundmodem ..

Hamish

Also the uTNT, which uses a USB connection, does KISS and is reasonably priced <http://www.elcom.gr>.

Bob, N7XY