Service_SDIOUnitAttached (changes)
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SDIODriver
» Service Calls
» Service_SDIOUnitAttached
Service_SDIOUnitAttached
(Service &81042)
| Entry | |
|---|---|
| R1 | &81042 (Reason Code) |
| R2 | Bits 0 – 7 = slot number |
| Bits 8 – 15 = bus number | |
| Bits 16 – 31 => relative card address (RCA) | |
| R3 | Bits 0 – 7 = unit number |
| Bits 8-15 = function interface code (FIC) for IO, or 0 for memory (1 = UART, 2 = Bluetooth Type-A etc.) | |
| Bit 16 set => device is write-protected | |
| Bit 17 set => MMC (rather than SD/SDIO) device | |
| Bits 18-31 reserved, 0 | |
| R4 | Low word of card capacity (for memory cards) |
| R5 | High word of card capacity (for memory cards) |
| Exit | |
|---|---|
| R1 | 0 to claim, else preserved |
Use
This service is used to notify the OS that there is a unit attached to the machine.
See also
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