diff options
| -rw-r--r-- | README | 9 | ||||
| -rw-r--r-- | lcd4linux.c | 43 |
2 files changed, 41 insertions, 11 deletions
@@ -1,5 +1,5 @@ # -# $Id: README,v 1.7 2000/08/09 09:50:29 reinelt Exp $ +# $Id: README,v 1.8 2000/08/09 14:14:11 reinelt Exp $ # This is the README file for lcd4linux @@ -25,13 +25,14 @@ list available drivers lcd4linux -d calibrate delay loop (necessary for some drivers) -lcd4linux [-c key=val] [-f config-file] [-o output] [-q] [-v] +lcd4linux [-c key=val] [-F] [-f config-file] [-o output] [-q] [-v] run lcd4linux -generate debugging messages with '-v' +overwrite entries from the config-file with '-c' +do not fork and detach with '-F' use configuration from 'config-file' instead of /etc/lcd4linux.conf write picture to 'output' (raster driver only) -overwrite entries from the config-file with '-c' suppress startup splash screen with '-q' +generate debugging messages with '-v' (implies -F) SUPPORTED DISPLAYS diff --git a/lcd4linux.c b/lcd4linux.c index 0d49202..3236937 100644 --- a/lcd4linux.c +++ b/lcd4linux.c @@ -1,4 +1,4 @@ -/* $Id: lcd4linux.c,v 1.24 2000/08/09 09:50:29 reinelt Exp $ +/* $Id: lcd4linux.c,v 1.25 2000/08/09 14:14:11 reinelt Exp $ * * LCD4Linux * @@ -20,6 +20,11 @@ * * * $Log: lcd4linux.c,v $ + * Revision 1.25 2000/08/09 14:14:11 reinelt + * + * new switch -F (do not fork) + * added automatic forking if -F not specified + * * Revision 1.24 2000/08/09 09:50:29 reinelt * * opened 0.98 development @@ -163,7 +168,7 @@ static void usage(void) printf ("usage: lcd4linux [-h]\n"); printf (" lcd4linux [-l]\n"); printf (" lcd4linux [-d]\n"); - printf (" lcd4linux [-c key=value] [-f config-file] [-o output-file] [-q] [-v]\n"); + printf (" lcd4linux [-c key=value] [-F] [-f config-file] [-o output-file] [-q] [-v]\n"); } int hello (void) @@ -229,9 +234,10 @@ int main (int argc, char *argv[]) char *cfg="/etc/lcd4linux.conf"; char *driver; int c, smooth; + int foreground=0; int quiet=0; - - while ((c=getopt (argc, argv, "c:df:hlo:qv"))!=EOF) { + + while ((c=getopt (argc, argv, "c:dFf:hlo:qv"))!=EOF) { switch (c) { case 'c': if (cfg_cmd (optarg)<0) { @@ -242,6 +248,12 @@ int main (int argc, char *argv[]) case 'd': calibrate(); exit(0); + case 'F': + foreground++; + break; + case 'f': + cfg=optarg; + break; case 'h': usage(); exit(0); @@ -249,9 +261,6 @@ int main (int argc, char *argv[]) printf ("%s\n", release); lcd_list(); exit(0); - case 'f': - cfg=optarg; - break; case 'o': output=optarg; break; @@ -260,6 +269,7 @@ int main (int argc, char *argv[]) break; case 'v': debugging++; + foreground++; break; default: exit(2); @@ -271,6 +281,25 @@ int main (int argc, char *argv[]) exit(2); } + if (!foreground) { + pid_t i; + // debugging does not make sense here + // because -v implies -F which sets foreground=1 + // debug ("going background...\n"); + i=fork(); + if (i<0) { + perror ("fork() failed"); + exit (1); + } + printf ("fork() returned %d\n", i); + if (i!=0) + exit (0); + close (0); + close (1); + printf ("Hallo stdout\n"); + fprintf (stderr, "Hallo stderr\n"); + } + debug ("LCD4Linux " VERSION "\n"); // set default values |