ALSASeqPortCapFlag

flags ALSASeq.PortCapFlag

A set of flags for the capabilities of port.

Name	Description
`ALSASEQ_PORT_CAP_FLAG_READ`	Any message can be read from the port.
`ALSASEQ_PORT_CAP_FLAG_WRITE`	Any message can be written to the port.
`ALSASEQ_PORT_CAP_FLAG_DUPLEX`	Any messages can be read from/written to the port simultaneously.
`ALSASEQ_PORT_CAP_FLAG_SUBS_READ`	The data of subscription can be read from the port.
`ALSASEQ_PORT_CAP_FLAG_SUBS_WRITE`	The data of subscription can be written to the port.
`ALSASEQ_PORT_CAP_FLAG_NO_EXPORT`	Only owners of the port can maintain subscription.