default or selected kernelversion does not have config value CONFIG_SND_BF5XX_MMAP_SUPPORT.
Result is shown for kernelversion 6.7-rc3
Enable MMAP Support
configname: CONFIG_SND_BF5XX_MMAP_SUPPORT
Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>Enable MMAP Support
In linux kernel since version 2.6.29 (release Date: 2009-03-23)
Say y if you want AC97 driver to support mmap mode.
We introduce an intermediate buffer to simulate mmap.
We introduce an intermediate buffer to simulate mmap.