# This rules file is part of udev-usb-sync package
#
# MIT License
#
# Copyright (c) 2023 Frede Hundewadt (@linux-aarhus)
#
# Permission is hereby granted, free of charge,to any person obtaining a copy
# of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
#    @linux-aarhus - root.nix.dk
#
# configuration : /etc/usb-dev-sync/usb-dev-sync.conf
# triggered by  : /usr/lib/udev/rules.d/99-usb-sync.rules
#
# contributors: @megavolt (Manjaro Forum)
#             : @linux-aarhus (Manjaro Forum)
# inspired by : @kwg (EndeavourOS Forum)

# rule to disable write cache for usb storage
# 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"

# rules to impose buffer limits on USB devices
# implemented using: /usr/bin/udev-usb-sync
# see configuration: /etc/udev-usb-sync/udev-usb-sync.conf
# Works since Linux 6.2
ACTION=="add|change", KERNEL=="sd[a-z]", ENV{ID_USB_TYPE}=="disk", ATTRS{speed}=="12",    RUN+="/usr/bin/udev-usb-sync %k 12"
ACTION=="add|change", KERNEL=="sd[a-z]", ENV{ID_USB_TYPE}=="disk", ATTRS{speed}=="480",   RUN+="/usr/bin/udev-usb-sync %k 480"
ACTION=="add|change", KERNEL=="sd[a-z]", ENV{ID_USB_TYPE}=="disk", ATTRS{speed}=="5000",  RUN+="/usr/bin/udev-usb-sync %k 5000"
ACTION=="add|change", KERNEL=="sd[a-z]", ENV{ID_USB_TYPE}=="disk", ATTRS{speed}=="10000", RUN+="/usr/bin/udev-usb-sync %k 10000"