Int 66 Fn 068C  - Ibmsnd Driver, Digpak - Report Audio Driver Capabilitie  [s]

   AX = 068Ch

Return: AX = capabilities (see #3191)
   DX = playback rate if fixed-frequency playback
   ---DIGPAK---
   BX:CX -> ASCIZ ID string

See Also: AX=0689h,AX=068Dh

Bitfields for IBMSND driver capabilities:
Bit(s) Description (Table 3191)
 0 can play audio in background
 1 data is massaged for output device
 2 driver plays at fixed frequency, resampling input data to fit
 3 driver uses timer interrupt
---DIGPAK---
 4 device supports timer sharing
 5 supports looped sounds and pending
 6 supports stereo panning
 7 supports 8-bit PCM stereo playback
 8 supports audio recording
 9 supports DMA bakcfilling