Class
HinokoFwIsoIt
Description [src]
class Hinoko.FwIsoIt : GObject.Object {
parent_instance: GObject
}An object to transmit isochronous packet for single channel.
HinokoFwIsoIt transmits isochronous packets for single channel by IT context in 1394 OHCI.
The content of packet is split to two parts; context header and context payload in a manner of
Linux FireWire subsystem.
Instance methods
hinoko_fw_iso_it_allocate
Allocate an IT context to 1394 OHCI hardware. A local node of the node corresponding to the given path is used as the hardware, thus any path is accepted as long as process has enough permission for the path.
since: 0.7
hinoko_fw_iso_it_map_buffer
Map intermediate buffer to share payload of IT context with 1394 OHCI hardware.
since: 0.7
hinoko_fw_iso_it_register_packet
Register packet data with header and payload for IT context. The content of given header and
payload is appended into data field of isochronous packet to be sent. The caller can schedule
hardware interrupt to generate interrupt event. In detail, please refer to documentation about
HinokoFwIsoIt::interrupted.
since: 0.7
Methods inherited from HinokoFwIsoCtx (6)
hinoko_fw_iso_ctx_create_source
Create GSource for GMainContext to dispatch events for isochronous context.
since: 0.7
hinoko_fw_iso_ctx_flush_completions
Flush isochronous context until recent isochronous cycle. The call of function forces the context to queue any type of interrupt event for the recent isochronous cycle. Application can process the content of isochronous packet without waiting for actual hardware interrupt.
since: 0.7
hinoko_fw_iso_ctx_read_cycle_time
Retrieve the value of cycle time register. This method call is available once any isochronous context is created.
since: 1.0.
hinoko_fw_iso_ctx_release
Release the contest from 1394 OHCI hardware.
since: 0.7
hinoko_fw_iso_ctx_stop
Stop isochronous context.
since: 0.7
hinoko_fw_iso_ctx_unmap_buffer
Unmap intermediate buffer shared with 1394 OHCI hardware for the context.
since: 0.7
Properties
Properties inherited from HinokoFwIsoCtx (2)
HinokoFwIsoCtx:bytes-per-chunk
The number of bytes per chunk in buffer.
since: 0.7
HinokoFwIsoCtx:chunks-per-buffer
The number of chunks per buffer.
since: 0.7
Signals
Hinoko.FwIsoIt::interrupted
Emitted when Linux FireWire subsystem generates interrupt event. There are three cases for Linux FireWire subsystem to generate the event:
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.
Signals inherited from HinokoFwIsoCtx (1)
Class structure
struct HinokoFwIsoItClass {
GObjectClass parent_class;
void (* interrupted) (
HinokoFwIsoIt* self,
guint sec,
guint cycle,
const guint8* tstamp,
guint tstamp_length,
guint count
);
}Class members
parent_class: GObjectClass- No description available.
interrupted: void (* interrupted) ( HinokoFwIsoIt* self, guint sec, guint cycle, const guint8* tstamp, guint tstamp_length, guint count )- No description available.