It doesn't work and doesn't appear on dmesg until the module is manually inserted with
modprobe snd-azt2320
ISA cards are apparently not modprobed automatically at bootup so you'll have to use hwinfo or a similar tool to find it out (Driver Activation Cmd:). They also lack a vendor ID so add the PCI Vendor from the PCI ID Database https://pci-ids.ucw.cz/read/PC/ and pass it in the Product ID field to be able to insert, in this case Aztech is 11ae. CS4231 is the chip found by alsamixer. Product year is either 1997 or 1998.
hwinfo --verbose --sound
23: ISA(PnP) 01.0: 0401 Multimedia audio controller [Created at isapnp.142] Unique ID: R_Yp.JCbCnR0V0XF SysFS ID: /devices/pnp1/01:01/01:01.00 SysFS BusID: 01:01.00 Hardware Class: sound Model: "Aztech AZT1008 PnP SOUND DEVICE" Vendor: AZT "Aztech Systems" Device: eisa 0x1008 "AZT1008 PnP SOUND DEVICE" SubVendor: AZT "Aztech Systems" SubDevice: eisa 0x0500 Driver Info #0: Driver Status: snd-azt2320 is active Driver Activation Cmd: "modprobe snd-azt2320" Config Status: cfg=new, avail=yes, need=no, active=unknown
dmesg
[ 278.364604] sb16 01:01.00: [irq 5] [ 278.364627] sb16 01:01.00: [dma 1] [ 278.364642] sb16 01:01.00: [dma 5] [ 278.364673] sb16 01:01.00: [io 0x0220-0x022f] [ 278.364696] sb16 01:01.00: [io 0x0330-0x0331] [ 278.364718] sb16 01:01.00: [io 0x0388-0x038b] [ 278.367090] sb16 01:01.00: activated
3G cards | 33 |
Acquisition cards | 34 |
Bluetooth | 56 |
Ethernet cards | 170 |
Fingerprint readers | 11 |
Host Controllers | 170 |
Modems | 18 |
Notebooks | 786 |
Printers | 125 |
RAID adapters | 20 |
Scanners | 24 |
SD card readers | 56 |
Sound cards | 140 |
Video cards | 341 |
Webcams | 132 |
Wifi cards | 230 |
TOTAL | 2346 |