iB::Topic::External Modem help (USB to serial)

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Topic: External Modem help (USB to serial)

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SaidinUnleashed Offline

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Posts: 1428
Joined: Mar. 2004

Posted: July 18 2005,23:43

Did you try all the /dev/sttyX devices?

on some motherbords the external serial port is not 0 for some reason.

-J.P.

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ShaneRay

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Posts: 26
Joined: June 2005

Posted: July 22 2005,22:49

Yep, I've tried various nodes/ports. It certainly sees a serial port at ttyUSB0 as it "tries" to communicate. The others ilicits the "failed input/output error"---or something along thise lines.

However, I did notice for the 1st time last night (not sure how I missed it) that I get an error along the lines of, "failed to set write permissions /dev/ttyUSB0 read-only filesystem". So, I thought I'd try to chmod the node to different permissions but get the same error: read-only file system. I believe that's my problem...not sure how to fix it though.

cbagger01

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Posted: July 23 2005,03:31

Try this. Install the gnu-utils.dsl extension and then open an xterminal window and type:

sudo su
rm /dev/ttyUSB0
mknod /dev/ttyUSB0 c 188 0
exit

and see if it works.

ShaneRay

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Posts: 26
Joined: June 2005

Posted: July 23 2005,17:20

Thanks for the help again cbagger.

I actually tried the mknod command yesterday, didn't work of course as I didn't know about that dsl extension....good stuff

Anyway, that cleared up the read-only file system problem. But, the same problems remain. DSL just won't communicate with the modem. I'm beginning to wonder if it's something to do with the kernal and/or the drivers for the usb-serial adapter. I thought I had read somewhere in my google travels that the 2.4 kernel had problems with it(sometimes)....not sure, though.

Anyway, think I'll give up on it for now. I have DSL working great on my old laptop; which was the main reason for getting DSL. Would love to be able to boot into it on my desktop, though. With "toram" my system feels like a pentium 5ghz...lol.

Thanks

cbagger01

Group: Members
Posts: 4264
Joined: Oct. 2003

Posted: July 24 2005,03:30

If you want to check for linux compatibility information, check here:

http://www.qbik.ch/usb/devices/

9 replies since July 10 2005,14:11

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