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update with rules for kernel >= 6.2
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commit
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2 changed files with 13 additions and 5 deletions
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# rule to disable write cache for usb storage
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#
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# rule to disable write cache for usb storage that supports write-cache command
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# requires hdparm to be installed
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ACTION=="add|change", KERNEL=="sd[a-z]", ENV{ID_USB_TYPE}=="disk", RUN+="/usr/bin/hdparm -W 0 /dev/%k"
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#
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# the following rules is introduced with kernel 6.2
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# https://docs.kernel.org/admin-guide/abi-testing.html#abi-sys-class-bdi-bdi-strict-limit
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# https://docs.kernel.org/admin-guide/abi-testing.html#abi-sys-class-bdi-bdi-max-ratio
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# https://docs.kernel.org/admin-guide/abi-testing.html#abi-sys-class-bdi-bdi-max-bytes
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ACTION=="add|change", KERNEL=="sd[a-z]", ENV{ID_USB_TYPE}=="disk", RUN+="/usr/bin/echo 1 > /sys/block/%k/bdi/strict_limit", RUN+="/usr/bin/echo 50 > /sys/block/%k/bdi/max_ratio", RUN+="/usr/bin/echo 16777216 > /sys/block/%k/bdi/max_bytes"
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8
PKGBUILD
8
PKGBUILD
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# Maintainer:
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# Maintainer: root.nix.dk
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pkgname='udev-usb-sync'
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pkgver=0.1
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pkgrel=1
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pkgdesc='Disable writecache when USB storage device is plugged'
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pkgrel=2
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pkgdesc='Finetune writecache when USB storage device is plugged'
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arch=('any')
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url='https://codeberg.org/wonky/udev-usb-sync'
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license=('MIT')
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depends=('hdparm')
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provides=("${pkgname}")
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source=('99-usb-sync.rules')
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sha256sums=('ed0253bbbd5b64529efd752978ba17176e3ff23d3f7f220bbacd3fa3a3691df9')
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sha256sums=('012b9991a9eee3149eb27e8d3c7b4d40b56bbfe2030ce84823a90c968410f8d0')
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package() {
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install -d -m755 $pkgdir/etc/udev/rules.d
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