I've tested the two cards i have (both work) and are having the CA0106 craved onto the chip despite having two names for the same model- it's not CA0111 (the CA0106 and CA0111 were used to replace the better EMUk chip in lower end models as all of them were used in the 3 brand series). On the sticker on the back of the card it says it's SB0570 and Soundblaster Audigy is painted onto the PCB, while the lspci command shows it's SB Audigy SE. The previous insertion was on an X-Fi card.

X-Fi

lspci -vmmnn

Slot:	05:01.0
Class:	Multimedia audio controller [0401]
Vendor:	Creative Labs [1102]
Device:	CA0106 Soundblaster [0007]
SVendor:	Creative Labs [1102]
SDevice:	Soundblaster X-Fi Xtreme Audio [1013]

lspci -nnk

05:01.0 Multimedia audio controller [0401]: Creative Labs CA0106 Soundblaster [1102:0007]
	Subsystem: Creative Labs Soundblaster X-Fi Xtreme Audio [1102:1013]
	Kernel driver in use: CA0106
	Kernel modules: snd-ca0106

Audigy

lspci -vvnnk

03:02.0 Multimedia audio controller [0401]: Creative Labs CA0106/CA0111 [SB Live!/Audigy/X-Fi Series] [1102:0007]
        Subsystem: Creative Labs SB0570 [SB Audigy SE] [1102:100a]
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 32 (500ns min, 5000ns max)
        Interrupt: pin A routed to IRQ 23
        Region 0: I/O ports at ec00 [size=32]
        Capabilities: [dc] Power Management version 2
                Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Kernel driver in use: snd_ca0106
        Kernel modules: snd_ca0106