In case anyone is wondering, I used the a PPA kernel with the new BFS scheduler. With the CPUFREQ set at performance I am able to get 5ms latency with full duplex, using vinyl control.
For now I am marking the bug as wont fix since it seems like the OSS emulation layer does not support full duplex.
I was able to get full duplex working with ALSA.
In case anyone is wondering, I used the a PPA kernel with the new BFS scheduler. With the CPUFREQ set at performance I am able to get 5ms latency with full duplex, using vinyl control.
For now I am marking the bug as wont fix since it seems like the OSS emulation layer does not support full duplex.