modprobe sound insmod ad1848 insmod gus io=* irq=* dma=* ... This loads the driver for the Gravis Ultrasound family of sound cards. The gus module takes the following arguments io I/O address of the Ultrasound card (eg. io=0x220) irq IRQ of the Sound Blaster card dma DMA channel for the Sound Blaster dma16 2nd DMA channel, only needed for full duplex operation type 1 for PnP card gus16 1 for using 16 bit sampling daughter board no_wave_dma Set to disable DMA usage for wavetable (see note) db16 ??? no_wave_dma option This option defaults to a value of 0, which allows the Ultrasound wavetable DSP to use DMA for playback and downloading samples. This is the same as the old behaviour. If set to 1, no DMA is needed for downloading samples, and allows owners of a GUS MAX to make use of simultaneous digital audio (/dev/dsp), MIDI, and wavetable playback. If you have problems in recording with GUS MAX, you could try to use just one 8 bit DMA channel. Recording will not work with one DMA channel if it's a 16 bit one.