TD_FORMAT/ETD_FORMAT - Write data to card memory

This function is traditionally used to write data to a disk that has not yet been formatted before or has had a hard error on a standard write command. None of these states apply to the credit card device, and as such, this command is identical to CMD_WRITE.

io_Device

Preset by the call to OpenDevice()

io_Unit

Preset by the call to OpenDevice()

io_Command TD_FORMAT or ETD_FORMAT

io_Flags

0 or IOF_QUICK

io_Data

Points to a buffer containing the data to write to the track, must be at least as large as io_Length.

io_Length

Number of bytes to write, must be a multiple of the card block size.

io_Offset

Byte offset from the start of the card, must be a multiple of the card block size.

iotd_Count

(ETD_FORMAT only) maximum allowable change counter value.

io_Error

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

CMD_WRITE, TD_RAWWRITE