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Krzysztof kuhy Rudnicki
cce6e2c048
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kuhy: "I do not want it to work like this, I want it to just work normally." PS4 mode (046D:C260) cannot be supported on this PC (no kernel driver, SDL lg4ff has no c260 either, so FFB is dead there too) and the selector is physical. Keep the mode detection so the journal and --status name PS4 mode instead of "not found"; drop the desktop notification and the 5-minute Restart loop. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01NVfC2T6DyvCFqse9A99zef
62 lines
2.2 KiB
Bash
Executable File
62 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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# ============================================================================
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# Logitech G29: which mode is the wheel in.
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#
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# Sourced by fix_g29_shifter.sh and tests/test_fix_g29_shifter.bats.
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#
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# The G29 has a physical PS3/PS4 selector. Only the PS3 position ends up as
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# the native 046D:C24F device that hid-logitech (new-lg4ff) binds and the
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# HID-BPF shifter fix targets. The PS4 position enumerates as 046D:C260:
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# hid-generic, a different report layout, no kernel driver, no shifter fix.
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# Nothing used to notice -- on the 2026-09-15 and 2026-09-17 boots the wheel
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# came up in PS4 mode and 1st/3rd were dead all day while every layer of the
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# safety net looked for C24F only. Details: ../docs/DOCS-g29-shifter.md.
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# ============================================================================
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[[ -n "${_G29_WHEEL_MODE_LOADED:-}" ]] && return 0
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_G29_WHEEL_MODE_LOADED=1
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# Overridable so tests can point at a fake sysfs tree.
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G29_HID_SYSFS="${G29_HID_SYSFS:-/sys/bus/hid/devices}"
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readonly G29_PID_NATIVE="0003:046D:C24F"
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readonly G29_PID_PS4="0003:046D:C260"
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readonly G29_PID_COMPAT="0003:046D:C294"
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# Print the sysfs path of the first $1 device that has a report descriptor
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# (the wheel exposes two HID interfaces; only the joystick one has one).
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g29_sysfs_device() {
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local dev
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for dev in "$G29_HID_SYSFS/$1".*; do
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if [[ -s "$dev/report_descriptor" ]]; then
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echo "$dev"
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return 0
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fi
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done
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return 1
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}
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# Print one of: native | ps4 | compat | absent
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g29_wheel_mode() {
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if g29_sysfs_device "$G29_PID_NATIVE" >/dev/null; then
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echo native
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elif g29_sysfs_device "$G29_PID_PS4" >/dev/null; then
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echo ps4
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elif g29_sysfs_device "$G29_PID_COMPAT" >/dev/null; then
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echo compat
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else
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echo absent
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fi
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}
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# One line a human can act on, for any non-native mode.
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g29_mode_explanation() {
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case "$1" in
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ps4) echo "G29 is in PS4 mode (046D:C260): flip the PS3/PS4 selector on the wheel to PS3. The shifter fix, hid-logitech and FFB only work in PS3 mode." ;;
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compat) echo "G29 is stuck in compatibility mode (046D:C294): hid-logitech did not switch it to native. Check 'modinfo hid_logitech', then replug." ;;
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absent) echo "no G29 on the HID bus" ;;
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native) echo "G29 in native mode (046D:C24F)" ;;
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*) echo "unknown G29 mode '$1'" ;;
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esac
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}
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