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Commit fe971f91 authored by Takashi Sakamoto's avatar Takashi Sakamoto
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firewire: cdev: implement new event relevant to phy packet with time stamp

In 1394 OHCI, the OUTPUT_LAST descriptor of Asynchronous Transmit (AT)
context has timeStamp field, in which 1394 OHCI controller record the
isochronous cycle when the packet was sent for the request subaction.
Additionally, the trailing quadlet of Asynchronous Receive (AR) context
has timeStamp field as well in which 1394 OHCI controller record the
isochronous cycle when the packet arrived. The time stamps are also
available for the cases to send and receive phy packet.

This commit implements new events with time stamp field for user space.

Link: https://lore.kernel.org/r/20230529113406.986289-13-o-takashi@sakamocchi.jp


Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
parent e27b3939
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