usb

[Jerry Feldman]

Upgrade your kernel. I had to upgrade from 2.4.10 to 2.4.16 to get USB to 
work.
"dan moylan" wrote:

> well, first of all, i am using rh7.1 on a thinkpad 380z, kernel 2.4.2-2
> (as furnished with the distribution).  since i have been stymied in the
> past in trying to compile kernels, i got only the two disk set from
> cheapbytes this time which doesn't seem to include the kernel source.
> i.e. /usr/src contains only redhat, and that seem to contain only empty
> directories.  nor does there seem to be any kernel stuff on the two
> disks that i can see.
> 
> but . . . i did look in /lib/modules/2.4.2-2/kernel/drivers/usb/serial
> and did an insmod for: usbserial, keyspan, keyspan_pda, and mct_u232,
> all of which showed up in lsmod, to wit:
> 
> mct_u232                4160   0  (unused)
> keyspan_pda             6288   0  (unused)
> keyspan                16096   0  (unused)
> usbserial              13200   0  [mct_u232 keyspan_pda keyspan]
> pcnet_cs               10656   1
> 8390                    6816   0  [pcnet_cs]
> autofs                 11264   1  (autoclean)
> usbnet                  9904   0  (unused)
> aha152x_cs             33113   0
> scsi_mod               95104   1  [aha152x_cs]
> ds                      7280   2  [pcnet_cs aha152x_cs]
> yenta_socket           11440   2
> pcmcia_core            43072   0  [pcnet_cs aha152x_cs ds yenta_socket]
> ipchains               38976   0  (unused)
> cs4232                  3440   0
> ad1848                 17904   0  [cs4232]
> uart401                 6768   0  [cs4232]
> sound                  62688   0  [cs4232 ad1848 uart401]
> soundcore               4464   4  [sound]
> usb-uhci               20720   0  (unused)
> usbcore                49664   1  [mct_u232 keyspan_pda keyspan usbserial usb
> net usb-uhci]
> 
> this would seem to indicate usb support via modules.  i have both photopc
> and modem linked to ttyUSB0, and ttyUSB0 with all permissions:
> 
> lrwxrwxrwx    1 root     root            7 Feb  3 14:44 modem -> ttyUSB0
> lrwxrwxrwx    1 root     root            7 Feb  3 15:07 photopc -> ttyUSB0
> crwxrwxrwx    1 root     uucp     188,   0 Mar 23  2001 ttyUSB0
> 
> none the less, the device seems not to be there, giving these errors:
> 
> sirius:moylan:~ [1007] photopc query
> Error 19: open /dev/photopc error No such device
> eph_open failed
> 
> efax: 44:42 compiled Aug 30 2000 15:41:09
> efax: 44:42 Error: can't open serial port /dev/modem: No such device
> efax: 44:42 failed -> tx0103a.001
> efax: 44:42 done, returning 2 (unrecoverable error)
> 
> i probably have some terrible misconceptions, but there you have it.
> thanks for the suggestions.
> 
> dan
> 
> peter wood said:
> > You probably need the USB Serial Converter kernel support.
> 
> > If you are using a 2.4 series kernel, it should be pretty easy to enable.
> > In the kernel config make sure you have enabled usb support. Then,
> > while you're in the usb support section, you should find 'USB Serial
> > Converter Support'.  Go into that section, enable usb serial support
> > (first option) and then enable the modules for which ever of the
> > selections seems apropos to your needs. Then just build all the new
> > kernel modules and you're set to go. There is more info on
> > Sourceforge, I think the project is just called usbserial.
> 
> > This is what the Handspring Visor and the Keyspan USB PDA adapter
> > use to connect. It basically creates serial devices that hook in to USB.
> > For example /dev/ttyUSB01 can be used just like any other serial
> > device.
> 
> > Here are the basic config options you'll need, in case you config your
> > kernel manually:
> > CONFIG_USB=m
> > CONFIG_USB_SERIAL=m
> 
> > And then the specific driver - here, for example, the Keyspan USB
> > Serial PDA adapter.
> 
> > CONFIG_USB_SERIAL_KEYSPAN_PDA=m
> 
> > Let me know if this is unclear. It's been a while since I had USB on a
> > Linux box so I'm a little hazy, but I think that's the general idea.
> 
> charles bennett said:
> > Assuming you have a RedHat 7-ish system with a 2.4.x kernel, look in
> > /usr/src/linux-2.4/Documentation/usb.
> 
> > The files usb-serial.txt and hotplug.txt are probably apropos.
> 
> > dan moylan said:
> >>
> >> i possess a usb to serial adaptor.
> >>
> >> lsmod shows the following:
> >>
> >>  usbnet                  9904   0 (unused)
> >>  usb-uhci               20720   0 (unused)
> >>  usbcore                49664   1 [usbnet usb-uhci]
> >>
> >> i see no man pages related to usb at all, at least
> >> man -k usb shows nothing.
> 
> j. daniel moylan
> 84 harvard ave #2
> brookline, ma 02446-6202
> 617-232-2360 (tel)
> 810-454-1823 (fax)
> jdm34 at cornell.edu
> moylan.info
> 
> --_----------=_101276818453860--
> 
> _______________________________________________
> Discuss mailing list
> Discuss at blu.org
> http://www.blu.org/mailman/listinfo/discuss
> 

-- 
Jerry Feldman <gaf at blu.org>
Boston Linux and Unix user group
http://www.blu.org PGP key id:C5061EA9
PGP Key fingerprint:053C 73EC 3AC1 5C44 3E14 9245 FB00 3ED5 C506 1EA9