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On Thu, Nov 29, 2012 at 07:31:10PM +0000, Jorge Almeida wrote |
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> It is a matter of programming, not looking. I need a program that |
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> creates the symlink when the device is plugged in. Think mdev |
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> (more precisely, a complement to mdev that would take care of a few |
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> particular devices, to allow using fstab to mount them in chosen |
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> mountpoints, and then leave the rest to mdev). |
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I have a couple of scripts that automount USB devices under mdev. See |
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https://wiki.gentoo.org/wiki/Mdev for the general setup, and |
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https://wiki.gentoo.org/wiki/Mdev/Automount_USB and |
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https://wiki.gentoo.org/wiki/Mdev/Automount_USB/automount |
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|
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Once set up, "it just works". If you want to go spelunking through |
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/sys for connected USB devices, here are a few hints. I currently |
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have connected to my machine... |
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* a Dell keyboard |
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* a Logitech trackball mouse |
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* an external USB hard drive |
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* 2 USB keys |
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|
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The output below shows that not every USB device has a serial number, |
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and the "Patriot Memory" key has a serial number but no manufacturer... |
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|
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[d531][waltdnes][~] find /sys/devices/pci0* -name serial | xargs cat |
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0000:00:1a.0 |
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0000:00:1a.1 |
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0000:00:1a.2 |
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0000:00:1a.7 |
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0000:00:1d.0 |
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0000:00:1d.1 |
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0000:00:1d.2 |
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0000:00:1d.7 |
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00000000000000070493 |
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078215B00E5C |
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574341565530313435313431 |
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|
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[d531][waltdnes][~] find /sys/devices/pci0* -name manufacturer | xargs cat |
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Linux 3.3.8-gentoo uhci_hcd |
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Linux 3.3.8-gentoo uhci_hcd |
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Dell |
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Linux 3.3.8-gentoo uhci_hcd |
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Logitech |
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Linux 3.3.8-gentoo ehci_hcd |
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Linux 3.3.8-gentoo uhci_hcd |
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Linux 3.3.8-gentoo uhci_hcd |
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Linux 3.3.8-gentoo uhci_hcd |
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Linux 3.3.8-gentoo ehci_hcd |
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SanDisk Corporation |
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|
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Western Digital |
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|
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[d531][waltdnes][~] find /sys/devices/pci0* -name product | xargs cat |
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UHCI Host Controller |
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UHCI Host Controller |
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Dell USB Keyboard |
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2003 |
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UHCI Host Controller |
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Trackball |
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c404 |
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EHCI Host Controller |
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UHCI Host Controller |
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UHCI Host Controller |
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UHCI Host Controller |
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EHCI Host Controller |
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Cruzer Titanium |
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Patriot Memory |
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My Book 1110 |
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|
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|
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-- |
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Walter Dnes <waltdnes@××××××××.org> |
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We are apparently better off trying to avoid udev like the plague. |
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Linus Torvalds; 2012/10/03 https://lkml.org/lkml/2012/10/3/349 |
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