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From: | Bert <dsboiz AT gmail DOT com> |
Subject: | IOCTL using <ddk/ntddser.h> |
Date: | Wed, 11 Mar 2009 22:57:05 +0000 (UTC) |
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When compiled on Cygwin's gcc the code below (which asks the baud rate of a serial port) shows the error "Funtion Not Implemented". I tried several serial port ioctl functions in <ddk/ntddser.h> - all gave the same error. I hope I'm doing something really dumb, any tips? #include <stdio.h> #include <fcntl.h> #include <sys/ioctl.h> #include <ddk/ntddser.h> int main() { int fd, result; SERIAL_BAUD_RATE x; /* baud rate structure in ntddser.h */ fd = open ( "/dev/com4" , O_RDWR | O_NOCTTY | O_NDELAY); if ( fd<0 ) { perror ("Can't open port - "); exit(-1); } result=ioctl(fd,IOCTL_SERIAL_GET_BAUD_RATE,&x,sizeof(x)); if(result<0){perror("IOCTL failed because "); exit(-1);} else printf ( "Baud rate is %d.\n", result, x.BaudRate ); } -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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