h6. [[CDFSDriver]] h6(. » [[CDFSDriver SWI Calls|SWI Calls]] h6((. » CD_Supported h2. CD_Supported h5. (SWI &41256) |_<^{width:4em}. Entry | | |<^. R7 |<^. Pointer to [[CDFS Control Block]] | |_<^{width:4em}. Exit | | |<^. R0 |<^. "Feature support flags":#supportflags | h4(#supportflags). Feature Support Flags |_<^{width:4em}. Bit |_<^. Meaning | |<^. 0 - 2 |<^. Level to which [[CD_AudioControl]] is supported ( 0 to 7 ) | ||<^. 0 = no support at all | ||<^. 1 = supported to level 0 | ||<^. 7 = supported to level 6 | |<^. 3 |<^. Supports [[CD_Prefetch]] | |<^. 4 |<^. Supports [[CD_CloseDrawer]] | |<^. 5 |<^. Supports [[CD_AudioLevel]] | |<^. 6-13 |<^. CD ROM speed - in multiples up to 255 x speed, 255 if unknown | |<^. 14 |<^. Supports [[CD_ReadAudio]] | |<^. 15 |<^. Supports [[CD_GetAudioParms]] and [[CD_SetAudioParms]] | h4. Use The purpose of this call is to check features the CD drive / driver supports. h4. Notes None. h4. See also * [[CDFSDriver Technical Details]]