Where are my USB special files?

gjaffe · n00b Joined: 09 Jun 2005 Posts: 6

I just installed gentoo from the "Packages" cdrom (2005.0) with the 2.6.11-r3 kernel. I followed the directions for configuring the kernel for usb support, but I can't seem to find any usb special files in /dev.

I want to use jpilot to sync with my Treo 650 via usb. I thought I should use /dev/ttyUSB1 to link to /dev/pilot, but I don't have anything in /dev that starts with 'ttyUSB'. Nor do I have a /dev/usb subdirectory.

Can someone please tell me how I can get these special files (or which special file to use)?

Thanks,

Gary

Sith_Happens · Posted: Thu Jun 09, 2005 5:23 am Post subject:

What's the tail end of dmesg look like when you plug it in?
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gjaffe · n00b Joined: 09 Jun 2005 Posts: 6

I get the following output from dmesg when I press the sync button on my Treo.

usb 2-1: new full speed USB device using uhci_hcd and address 3

While the Treo was trying to sync, lsusb said

Bus 002 Device 003: ID 0830:0061 Palm, Inc.
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 002: ID 047d:102d Kensington
Bus 001 Device 001: ID 0000:0000

I also have a Kinsington usb wheel mouse.

Also, while it's trying to sync, I still don't have a special file in /dev that starts with ttyUSB or a usb subdirectory.

Thanks,
Gary

Naib · Posted: Thu Jun 09, 2005 12:13 pm Post subject:

do you have USB tty support compiled for your kernel?
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gjaffe · n00b Joined: 09 Jun 2005 Posts: 6

Good point.

After recompiling my kernel with USB tty support I get the following from dmesg

usb 2-1: new full speed USB device using uhci_hcd and address 3
visor 2-1:1.0: Handspring Visor / Palm OS converter detected
usb 2-1: Handspring Visor / Palm OS converter now attached to ttyUSB0
usb 2-1: Handspring Visor / Palm OS converter now attached to ttyUSB1

which is more than I got before.

But I still don't have /dev/ttyUSB0 or /dev/ttyUSB1 in my /dev directory.

Any other thoughts?

Thanks,
Gary

Sith_Happens · Posted: Thu Jun 09, 2005 11:39 pm Post subject:

Unther · Apprentice Joined: 20 Feb 2005 Posts: 163

This would be a bit(?, or more) of a hack, but you could write a udev rule to attach the palm to whatever node you like (and know where to find).

gjaffe · n00b Joined: 09 Jun 2005 Posts: 6

gjaffe · n00b Joined: 09 Jun 2005 Posts: 6

frostschutz · Advocate Joined: 22 Feb 2005 Posts: 2977 Location: Germany

I have the same problem. Just reinstalled Gentoo -- USB devices (printer and scanner) get detected fine by the kernel, but do not turn up in /dev. In my old Gentoo, I had /dev/usb/scanner0 and /dev/usb/printer0 (or lp0, don't remember exactly), in new Gentoo, I don't have *anything* usb in /dev.

Udev is emerged and enabled according to the Gentoo udev guide. Hotplug and Coldplug are both emerged and rc-added and started at boot time. During bootup, they both give me '[OK]' messages.

Any clues what could be wrong? I don't remember doing any special extra configuration for USB devices on my old Gentoo.

EDIT: Following another thread, where udev rules were being ignored, I updated udev to 058. Didn't fix the problem unfortunately.

Maedhros · Posted: Fri Jun 24, 2005 9:58 pm Post subject:

Moved from Installing Gentoo to Kernel & Hardware.
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gjaffe · n00b Joined: 09 Jun 2005 Posts: 6

I was new to gentoo, so between this problem and a version problem with gcc which kept me from installing some packages I needed, I finally gave up and tried ubuntu. My usb hot-sync with my Treo 650 worked with ubuntu, but I had to sync with Kpilot before I could get it to work with anything else. Perhaps if you try sync'ing with Kpilot you'll have better luck.

nukem996 · l33t Joined: 13 Nov 2003 Posts: 776

Im having the same problem. After writing the Palm rule I get /dev/pilot but it does not work. I do not get /dev/ttyUSB0 /dev/ttyUSB1 /dev/usb/tts/0 /dev/usb/tts/1. This just happened when I switched from devfs to udev yesterday(thats all I changed PDA was working before that), my usb harddrive and printer work fine. Any ideas?

Thanks

nuke

frostschutz · Advocate Joined: 22 Feb 2005 Posts: 2977 Location: Germany

Tried updating the kernel to 2.6.12, but no luck - no USB devices, and Firewire suddenly causes kernel panics. Back to 2.6.11.12, Firewire works fine (I get the /dev/sda* devices too), but USB is missing.

I played around a bit with the udev commands, and that's what I've got:

dsd · Posted: Sat Jun 25, 2005 5:09 pm Post subject:

usb scanner driver was removed a long time ago. it is now done entirely in userspace via libusb and sane.
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frostschutz · Advocate Joined: 22 Feb 2005 Posts: 2977 Location: Germany

Riiight. Forget I said anything. :roll:

tuber · Apprentice Joined: 12 Nov 2004 Posts: 267

Look in

nukem996 · l33t Joined: 13 Nov 2003 Posts: 776

I dont have /dev/tts :\

tuber · Apprentice Joined: 12 Nov 2004 Posts: 267

How long did you wait after hitting the HotSync button before checking for the existence of the files? I noticed that it can take 5 or 10 seconds on my machine.

nukem996 · l33t Joined: 13 Nov 2003 Posts: 776

Ive waited till my Palm errors out and nothing. I always get this in my kernel though

tuber · Apprentice Joined: 12 Nov 2004 Posts: 267

Are you checking for the files before or after the Palm times out?

nukem996 · l33t Joined: 13 Nov 2003 Posts: 776

From the second I hit the button till a second after it times out(I check once more after it times out)

bvcarter · n00b Joined: 22 Mar 2005 Posts: 15

I am having pretty much the same problem. I have everything set up according to all the docs on the Gentoo site (I think at least) and I get this from dmesg when I hit hotsync (Palm Zire):

bvcarter · n00b Joined: 22 Mar 2005 Posts: 15

I finally got mine working. I found some information at gentoo-wiki.org that really helped. I did not realize there was a kernel module I was missing:

GungHo · Apprentice Joined: 27 Aug 2004 Posts: 254

Hi,

after doing an upgrade from gentoo-sources-2.6.11-r6 to 2.6.12-r4 I have got the same problem that you describe. But I have seen the visor module when doing a modprobe

. I also looked like all USB related modules were present, another /dev/ttyUSB entry from another device is also present :cry:

. Looks that in my case only my Visor has a prob, but I'll have to do further investigations :roll: