From 5ce3f85b29f933228761e95bf9cf42c84ee0b79f Mon Sep 17 00:00:00 2001
From: Frede Hundewadt <noreply@wonky.codeberg.org>
Date: Fri, 21 Jul 2023 11:03:06 +0200
Subject: [PATCH] update with rules for kernel >= 6.2

---
 99-usb-sync.rules | 10 +++++++++-
 PKGBUILD          |  8 ++++----
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/99-usb-sync.rules b/99-usb-sync.rules
index 8c4369e..e8d98f6 100644
--- a/99-usb-sync.rules
+++ b/99-usb-sync.rules
@@ -1,3 +1,11 @@
-# rule to disable write cache for usb storage
+#
+# rule to disable write cache for usb storage that supports write-cache command
 # requires hdparm to be installed
 ACTION=="add|change", KERNEL=="sd[a-z]", ENV{ID_USB_TYPE}=="disk", RUN+="/usr/bin/hdparm -W 0 /dev/%k"
+#
+# the following rules is introduced with kernel 6.2
+# https://docs.kernel.org/admin-guide/abi-testing.html#abi-sys-class-bdi-bdi-strict-limit
+# https://docs.kernel.org/admin-guide/abi-testing.html#abi-sys-class-bdi-bdi-max-ratio
+# https://docs.kernel.org/admin-guide/abi-testing.html#abi-sys-class-bdi-bdi-max-bytes
+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"
+
diff --git a/PKGBUILD b/PKGBUILD
index 01e1ba3..10102c9 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,15 +1,15 @@
-# Maintainer: 
+# Maintainer: root.nix.dk
 pkgname='udev-usb-sync'
 pkgver=0.1
-pkgrel=1
-pkgdesc='Disable writecache when USB storage device is plugged'
+pkgrel=2
+pkgdesc='Finetune writecache when USB storage device is plugged'
 arch=('any')
 url='https://codeberg.org/wonky/udev-usb-sync'
 license=('MIT')
 depends=('hdparm')
 provides=("${pkgname}")
 source=('99-usb-sync.rules')
-sha256sums=('ed0253bbbd5b64529efd752978ba17176e3ff23d3f7f220bbacd3fa3a3691df9')
+sha256sums=('012b9991a9eee3149eb27e8d3c7b4d40b56bbfe2030ce84823a90c968410f8d0')
 
 package() {
     install -d -m755 $pkgdir/etc/udev/rules.d