TD_RAWWRITE/ETD_RAWWRITE - write raw data to the card.

Raw write data bytes - most likely use is to write CIS bytes to card. Bytes written to attribute memory can be done as multi-byte writes with junk for odd bytes, though single byte writes to even byte addresses is recommended.

Caller MUST own the card!

io_Device

Preset by the call to OpenDevice()

io_Unit

Preset by the call to OpenDevice()

io_Command

TD_RAWWRITE or ETD_RAWWRITE.

io_Flags

Ignored

io_Length

Length of buffer in bytes, with a maximum of 65535 bytes.

io_Data

Pointer to memory buffer where data is to be taken.

io_Offset

Pointer to credit card or attribute memory region.

io_Error

0 for success, or an error code as defined in <devices/trackdisk.h>

Caller MUST own card, and pass in a valid pointer to credit-card common memory, or attribute memory. The raw r/w commands fail if the device owns the card. This has been done to prevent problems with someone who thinks they know how to deal with trackdisk, but provides an option to use another device! Rather than crashing because these commands are being used improperly, we return that these commands are not supported. Of course if they call these functions without checking for disk status change status, oh well...

TD_RAWREAD