INT 66 - IBMSND driver, DIGPAK - REPORT AUDIO DRIVER CAPABILITIES               
	AX = 068Ch
Return: AX = capabilities (see #03520)
	DX = playback rate if fixed-frequency playback
	---DIGPAK---
	BX:CX -> ASCIZA NUL-terminated ASCII string.	The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h.  Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. ID string
SeeAlso: AX=0689h,AX=068Dh


Bitfields for IBMSND driver capabilities:
Bit(s)	Description	(Table 03520)
 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 DMAsee Direct Memory Access bakcfilling