Enabling this serves is intended two purposes:
- fixing my missing webcam USB device, maybe due to a firmware bug
- trying out things that might improve my hardware support
`lspci | grep -i renesas` gives me on my machine:
05:00.0 USB controller: Renesas Electronics Corp. uPD720202 USB 3.0 Host Controller (rev 02)
This feature was enabled for testing in 2024-Oct-05
in commit 1634abbecef44187f573dc29f7af92ee2279eafd.
Tests with a specific BT player failed, so I can
disable it agian.
This was already enabled in 2022 (7b2b827d34bce12ea8aec1e370c32654eb46fd70)
but disabled when bpf support was enabled for use within systemd 243
(01b1f8af0442d0938bf1e7337f62ba6571b2fb1e).
Looks as we can enable both now in 6.12, so let's do that.
This not a panic reaction to the xz situation, but certainly an
experiment initiated by that. Let’s have a look at compression speed,
decompression (startup) speed and compression size.
Several changes to configs and packages must be done:
- enable kernel support for zstd compression for itself
- enable kernel support for zstd compression for the initramfs
- adopt firmware names in CONFIG_EXTRA_FIRMWARE
- let the initramfs be compressed with zstd
- compress firmware files with zstd (before re-building the kernel)
For some details see gitea issue #2.
This was disabled by accident in 2024-05 when bumping to 6.9.x
in commit 0cb31139d5263f6d2e406c0f673a5b61b5d7abdd.
For the original commit enabling SLS as CONFIG_SLS(sic!)
see commit d50c76cba87953a8570f7ae2f4a2354dfe165d31.
