Enable support for userspace-controlled virtual timers

configname: CONFIG_SND_UTIMER

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>Enable support for userspace-controlled virtual timers
In linux kernel since version 6.1.112 (release Date: 2024-09-30)  
Say Y to enable the support of userspace-controlled timers. These
timers are purely virtual, and they are supposed to be triggered
from userspace. They could be quite useful when synchronizing the
sound timing with userspace applications (for instance, when sending
data through snd-aloop).