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Lindsay Haisley posted <20041017184036.GH6508@×××.com>, excerpted below, |
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on Sun, 17 Oct 2004 13:40:36 -0500: |
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> Thus spake Duncan on Sun, Oct 17, 2004 at 02:33:09AM CDT |
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>> |
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>> One of the reference implementation examples uses scripting to look up |
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>> the info for a CD in a CDDB, and actually symlinks the artist and album |
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>> name as one of the available device names! Greg KH (one of the Gentoo |
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>> kernel devs, BTW as well as one of the up and coming mainline kernel |
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>> developers due to his UDEV work) said it was a "fun" script without a |
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>> lot of practical use, but that it /did/ illustrate the flexibility |
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>> available with udev! |
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> |
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> Wooo! Where can one find this implementation example script? |
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Try the OLS (Ottawa Linux Symposium) 2003 UDEV presentation paper by.. |
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none other than our own.. Greg KH. I believe that's where I saw it. |
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(I discovered that paper in LWN.net coverage of OLS.) |
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For practical implementation examples a bit closer to home, check out the |
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SCSI and IDE UDEV configurations on any UDEV Gentoo system. They provide |
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some pretty strong and practical examples of several of the features the |
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paper talks about, including dynamic symlinking for multiple entries, and |
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calling an external program then using its output to provide device names, |
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in this case, to provide DEVFS compatibility, since that's what Gentoo had |
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standardized on. (Here, I ripped out that stuff for my IDE drives, and |
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only retained the traditional /dev/hdX entries. I had to change the |
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hdparm config a bit as it used the DEVFS entries and I used it, but that |
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wasn't a big deal either, since I already knew the UDEV basics from the |
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paper and following the Gentoo scripts wasn't difficult.) |
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-- |
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Duncan - List replies preferred. No HTML msgs. |
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"They that can give up essential liberty to obtain a little |
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temporary safety, deserve neither liberty nor safety." -- |
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Benjamin Franklin |
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