CD_Supported (changes)
Showing changes from revision #4 to #5:
Added | Removed | Changed
CDFSDriver
» SWI Calls
» CD_Supported
CD_Supported
(SWI &41256)
| Entry | |
|---|---|
| R7 | Pointer to |
| Exit | |
|---|---|
| R0 |
Feature Support Flags
| 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 |
Use
The purpose of this call is to check features the CD drive / driver supports.
Notes
None.
See also
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.