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Top Forums Programming Serial programming using termios Post 302781605 by turner on Sunday 17th of March 2013 09:03:07 AM
Old 03-17-2013
Thanks for your answer.
I changed names to readinput (ex read function) and serial (ex write function), sorry about wrong names.
In readinput function, I get the user input (getchar()) and then write it to the port. And in serial function I read the port and print it.
I fixed my code, and now there are no warnings. But still the problem remains!
Let me ask my question from an upper point of view. How can I read the port immediately after writing data? Without the need of using sleep command after writing data to the port?

Thanks
 

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XvPortNotify(3) 						  libXv Functions						   XvPortNotify(3)

NAME
XvPortNotify - event generated when port attributes change SYNOPSIS
#include <X11/extensions/Xvlib.h> typedef union { int type; XvVideoNotifyEvent xvvideo; XvPortNotifyEvent xvport; long pad[24]; } XvEvent; typedef struct { int type; unsigned long serial; Bool send_event; Display *display; XvPortID port_id; Time time; Atom attribute; long value; } XvPortNotifyEvent; type Specifies the type of event: XvPortNotify. serial Number of the last request processed by the server. send_event True if the event was generated by a SendEvent request. display A pointer to the display the event was read from. port_id The port whose attribute has changed. attribute An atom specifying the attribute that changed. value The new value of the attribute. DESCRIPTION
XvPortNotify events are generated when a port attribute is set using the XvSetPortAttribute(3) function. SEE ALSO
XvSetPortAttribute(3), XvGetPortAttribute(3), XvSelectPortNotify(3). X Version 11 libXv 1.0.7 XvPortNotify(3)
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