Audio does not seem to be working

[LeviTrammell]

I've been messing around with this new build and noticed that the 3.5mm audio jack isn't working.

I pushed up a baseline Debian container that had all of /dev/ forwarded to it, installed alsa-utils && alsa-tools, and ran the following :

aplay -l
aplay: device_list:272: no soundcards found..

ls /dev/ looks like this.

autofs           log           mtdblock0  tty14  tty37  tty6      vcs2
block            loop-control  net        tty15  tty38  tty60     vcs3
bus              loop0         null       tty16  tty39  tty61     vcs4
char             loop1         port       tty17  tty4   tty62     vcs5
console          loop2         ptmx       tty18  tty40  tty63     vcs6
cpu_dma_latency  loop3         pts        tty19  tty41  tty7      vcsa
disk             loop4         ram0       tty2   tty42  tty8      vcsa1
dma_heap         loop5         random     tty20  tty43  tty9      vcsa2
fd               loop6         rfkill     tty21  tty44  ttyS0     vcsa3
full             loop7         rga        tty22  tty45  ttyS2     vcsa4
fuse             mali0         rtc        tty23  tty46  ubi_ctrl  vcsa5
gpiochip0        mem           rtc0       tty24  tty47  uhid      vcsa6
gpiochip1        mmcblk2       shm        tty25  tty48  uinput    vcsu
gpiochip2        mmcblk2boot0  snd        tty26  tty49  urandom   vcsu1
gpiochip3        mmcblk2boot1  stderr     tty27  tty5   usbmon0   vcsu2
gpiochip4        mmcblk2p1     stdin      tty28  tty50  usbmon1   vcsu3
hwrng            mmcblk2p2     stdout     tty29  tty51  usbmon2   vcsu4
i2c-0            mmcblk2p3     sw_sync    tty3   tty52  usbmon3   vcsu5
i2c-1            mmcblk2p4     tty        tty30  tty53  usbmon4   vcsu6
i2c-3            mmcblk2p5     tty0       tty31  tty54  usbmon5   vendor_storage
i2c-4            mmcblk2p6     tty1       tty32  tty55  usbmon6   vhci
iio:device0      mmcblk2rpmb   tty10      tty33  tty56  usbmon7   watchdog
initctl          mqueue        tty11      tty34  tty57  usbmon8   watchdog0
input            mtd0          tty12      tty35  tty58  vcs       zero
kmsg             mtd0ro        tty13      tty36  tty59  vcs1      zram0

I saw in some other forums something along the lines of adding some boot/config.txt key-value, but I'm unaware of what that actually looks like.