HSI_FLUSH(9) High Speed Synchronous Serial HSI_FLUSH(9)NAME
hsi_flush - Flush all pending transactions on the client's port
SYNOPSIS
int hsi_flush(struct hsi_client * cl);
ARGUMENTS
cl
Pointer to the HSI client
DESCRIPTION
This function will destroy all pending hsi_msg in the port and reset the HW port so it is ready to receive and transmit from a clean state.
Return -errno on failure, 0 on success
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 HSI_FLUSH(9)
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XvGrabPort(3) libXv Functions XvGrabPort(3)NAME
XvGrabPort - lock port for exclusive use by client
SYNOPSIS
#include <X11/extensions/Xvlib.h>
int XvGrabPort(Display *dpy, XvPortID port, Time time);
ARGUMENTS
dpy Specifies the connection to the X server.
port Defines the port to be grabbed.
time Specifies the request timestamp.
DESCRIPTION XvGrabPort(3) grabs a port. Once a client grabs a port, only that client can make video requests to that port.
If the time is before the current port time, the XvGrabPort request is ignored and XvInvalidTime is returned. If the port is already
grabbed by another client, XvAlreadyGrabbed is returned. Otherwise it returns a status of Success. The port time is updated when the fol-
lowing requests are processed: XvGrabPort(3), XvUngrabPort(3), XvPutVideo(3), XvPutStill(3), XvGetVideo(3), XvGetStill(3).
If the port is actively processing video for another client, the video is preempted, and an XvVideoNotify event with detail XvPreempted is
generated for its drawable.
RETURN VALUES
[Success]
Returned if XvGrabPort(3) completed successfully.
[XvInvalidTime]
Returned if requested time is older than the current port time.
[XvAlreadyGrabbed]
Returned if the port is already grabbed by another client.
[XvBadExtension]
Returned if the Xv extension is unavailable.
[XvBadAlloc]
Returned if XvGrabPort(3) failed to allocate memory to process the request.
DIAGNOSTICS
[XvBadPort] Generated if the requested port does not exist.
SEE ALSO XvUngrabPort(3), XvVideoNotify(3)X Version 11 libXv 1.0.5 XvGrabPort(3)
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