The packet for Asynchronous Streaming Packet includes the same header
fields as the isochronous packet has. It is helpful to have some helper
functions to serialize/deserialize them.
This commit adds such helper functions with their test.
Link: https://lore.kernel.org/r/20240428071347.409202-8-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
In both core and 1394 OHCI driver, some hard-coded values and macros are
used to serialize/deserialize the header of asynchronous packets. It is
inconvenient to reuse them.
This commit adds some helper inline functions with their tests for the
purpose.
Link: https://lore.kernel.org/r/20240428071347.409202-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>