DSP_VC_ACK_INT    191 sound/pci/echoaudio/echoaudio_dsp.h #define DSP_VC_ACK_INT				0x8073
DSP_VC_ACK_INT    212 sound/pci/echoaudio/echoaudio_dsp.h #define DSP_VC_ACK_INT				0x80F5