Ticket #22867: patch-ser_posix.c.diff

ser_posix.c

@@ -18 +18 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-/* $Id: ser_posix.c 826 2009-07-02 10:31:13Z joerg_wunsch $ */
+/* $Id: ser_posix.c 845 2009-10-10 01:41:40Z mludvig $ */
 
 /*
  * Posix serial interface for avrdude.
@@ -32 +32 @@
 #include <stdlib.h>
 #include <string.h>
 #include <errno.h>
+#include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/socket.h>
@@ -210 +211 @@
   fdp->ifd = fd;
 }
 
+
+static int ser_set_dtr_rts(union filedescriptor *fdp, int is_on)
+{
+  unsigned int  ctl;
+  int           r;
+
+  r = ioctl(fdp->ifd, TIOCMGET, &ctl);
+  if (r < 0) {
+    perror("ioctl(\"TIOCMGET\")");
+    return -1;
+  }
+
+  if (is_on) {
+    /* Clear DTR and RTS */
+    ctl &= ~(TIOCM_DTR | TIOCM_RTS);
+  }
+  else {
+    /* Set DTR and RTS */
+    ctl |= (TIOCM_DTR | TIOCM_RTS);
+  }
+
+  r = ioctl(fdp->ifd, TIOCMSET, &ctl);
+  if (r < 0) {
+    perror("ioctl(\"TIOCMSET\")");
+    return -1;
+  }
+
+  return 0;
+}
+
 static void ser_open(char * port, long baud, union filedescriptor *fdp)
 {
   int rc;
@@ -455 +486 @@
   .send = ser_send,
   .recv = ser_recv,
   .drain = ser_drain,
+  .set_dtr_rts = ser_set_dtr_rts,
   .flags = SERDEV_FL_CANSETSPEED,
 };