struct
Defined at line 645 of file ../../src/graphics/display/drivers/intel-display/registers-ddi.h
Total number of bytes in an AUX message, including the message header.
The driver writes this field to indicate the message size for the next AUX
transaction. The hardware writes this field to indicate the response size
for the last AUX transaction.
The message includes the header bytes (4 for command, 2 for reply). The
DisplayPort specification states that the maximum data size is 16 bytes,
leading to a 20-byte maximum message size.
The driver must write values between 1 and 20. The value read from this
field is only valid and meaningful if `transaction_done` is true, and
`transaction_in_progress`, `timeout`, and `receive_error` are false.
Public Members
Field field