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Hi |
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I need to distinguish several, mostly identical, USB devices from each |
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other by assigning them unique static names. I know there are primers(*) |
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that describe the process, and I try to follow them, but either the |
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gentoo /sys/ tree is broken in some way, or my system is broken, or the |
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primers / howto's are incorrect... |
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(*) http://webpages.charter.net/decibelshelp/LinuxHelp_UDEVPrimer.html |
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(*) http://www.reactivated.net/udevrules.php |
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I'm really stuck with this, so by way of reference I tried another linux |
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flavour, and there the whole /sys tree and udevinfo DO work as expected. |
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So I need to find out what's wrong. |
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The docs tell you to run 'udevinfo -a -p /sys/<path>'. But under gentoo, |
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I cannot find the right path. This is what is listed under /sys/class/usb*: |
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drwxr-xr-x 2 root root 0 Feb 3 11:46 usb |
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drwxr-xr-x 6 root root 0 Feb 3 11:46 usb_host |
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The usb directory is completely empty, the usb_host directory has four |
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devices, being the hostcontrollers. But the attached devices are not |
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listed anywhere. |
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However, looking at another linux (Suse 10) I find three directories: |
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drwxr-xr-x 2 root root 0 Feb 2 16:27 usb |
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drwxr-xr-x 13 root root 0 Feb 2 16:27 usb_device |
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drwxr-xr-x 4 root root 0 Feb 2 16:27 usb_host |
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And indeed, under usb_device I find all my attached devices...! |
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Under gentoo, I don't understand what should happen, and / or why it |
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doesn't. The kernel finds the device: |
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Feb 3 12:26:01 [kernel] usb 2-2: new full speed USB device using |
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uhci_hcd and address 6 |
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Feb 3 12:26:02 [kernel] pl2303 2-2:1.0: PL-2303 converter detected |
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and the device gets registered under /dev and is useable: |
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Gentoo # ls -la /dev/tts/ |
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crw-rw---- 1 root tty 188, 0 Feb 3 12:26 USB0 |
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But still, no /sys/ entry to be found! Not under usb, nor anywhere else. |
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And this is not just that special USB device. I tried connecting mice, |
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memory sticks, cardreaders, network interfaces, even hubs... nothing. |
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Can someone please help me ? I've been wrestling with this issue for |
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weeks now... :-( |
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Thanks in advance, |
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Maarten |
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-- |
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