Em Qui, 8 de abr de 2021 02:36, Lucas <jaffa225man@xxxxxxxxx> escreveu: > Well, I just got back from testing Mike's suggestion of setting the Roland > Boutique D-05 as a playback quirk, disabling its capture quirk, and setting > that endpoint test section to always be skipped. Sure, enough, the D-05's > playback is now perfectly crystal clear without the crackles associated > with an LP record. > I know that feeling and it is wonderful. > This is just a guess until I recompile again, but my capture from the D-05 > reports a read error, seemingly just as the vanilla mainline kernel does, > and I think it's because I disabled its capture quirk line. So, it seems > to me that the D-05 needs both quirk table entries, whether or not the GT-1 > does. > Looking back to Mike's 2019 post https://mailman.alsa-project.org/pipermail/alsa-devel/2020-January/161733.html we see the output of lsusb -v for the BOSS GT-1 and clearly we see that 0x8e is the implicit feedback sync EP, at least if we are to trust lsusb -v. Therefore Mike is on the right track that the GT-1 implicit feedback sync is for playback only. >
