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This is a Cirrus Logic Audio controller


  • Chipset: CS4236B
  • Interface: ISA 16bit

Linux ALSA driver

This sound chip is supported by the snd-cs4236 kernel module. Use the following options line when loading this module:

options snd-cs4236 snd_index=0 snd_port=0x530 snd_cport=0x538 snd_isapnp=0 snd_dma1=1 snd_dma2=0 snd_irq=5

With kernel 2.6.26 and a Thinkpad 380D, this is another solution:

options snd-cs4236 port=0x534 cport=0x538 isapnp=0 dma1=1 dma2=0 irq=5

ThinkPads this chip may be found in