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mad_ady
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Joined: 14 Jul 2004
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PostPosted: Mon Jul 19, 2004 11:07 am    Post subject: kernel 2.6.5 and hotplug usb Reply with quote

Hello again. I seem to have a problem with my usb devices (they don't work!) :)

First off - the printer.
I compiled everything I needed as kernel modules, started the system and configured a printer with cups. (By the way, the printer is a hp656c, if it matters). The thing is I can't print anything...

here's some output:
Code:

....
i2c_adapter i2c-0: master_send: writing 4 bytes.
bttv0: gpio: en=00000007, out=00000004 in=003ffff8 [audio: off]
bttv0: gpio: en=00000007, out=00000004 in=003ffff8 [audio: off]
bttv0: gpio: en=00000007, out=00000000 in=003ffff8 [audio: tuner]
usb 3-2: new full speed USB device using address 2
drivers/usb/class/usblp.c: usblp0: USB Bidirectional printer dev 2 if 0 alt 1 proto 2 vid 0x03F0 pid 0x2304
bttv0: gpio: en=00000007, out=00000004 in=003ffff8 [audio: off]


I've checked and there is a file called /dev/usb/lp0 .. so... it should work, right?
Unfortunatelly, it doesn't :( Perhaps I'll find out why...

Next, I tried to plug in my digital camera and that didn't work (or at list digikam didn't find it)
here's what dmesg has to say about it:
Code:


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

However, there wasn't any new file in /dev/usb

I think there's something wrong with hotplug (although it starts flawlesly at boot-up):
Code:

frost dev # hotplug usb
Bad USB agent invocation, no action



If you have any ideas what I'm doing wrong, please let me know!
Thanks!
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oumpah-pah
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Joined: 18 Jul 2004
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Location: Lausanne, Switzerland

PostPosted: Mon Jul 19, 2004 11:21 am    Post subject: Reply with quote

When I configured cups, it used /dev/usblp0 as printer by default. You should try to create a symlink to /dev/usb/lp0 with that name.
And do you use udev or devfs ?
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mad_ady
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PostPosted: Mon Jul 19, 2004 5:52 pm    Post subject: Reply with quote

Wow! You were right! I've just created the symlink and the thing started printing (forgot to delete the old print jobs!). Scared the hell out of me, but it works! Thanks.

By the way, I'm using udev, but I compiled support for devfs just to be sure. Will my symlink remain after I reboot? (there's only one way to find out...)

Now... what sould I do with the camera?
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oumpah-pah
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PostPosted: Mon Jul 19, 2004 6:32 pm    Post subject: Reply with quote

If you currently use devfs, the symlink will remain. If you use pure udev, then you have a little bit more to do. Let me know if it disapears after reboot...
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mad_ady
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PostPosted: Tue Jul 20, 2004 6:34 am    Post subject: Reply with quote

I rebooted and the symlink remains.

I also compiled SCSI support (emulation, discs), and USB storage support in my kernel, and unfortunatelly, my camera still won't work.
Well, at least the printer does... Thanks!
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