Minor cosmetics, typo fixes.

[sigrok-meter.git] / sigrok-meter

diff --git a/sigrok-meter b/sigrok-meter
index 72b8d49ee832d48a167aafec866ed3020789bbb9..884ad2d08781a187db2f83f67615484166061ca8 100755 (executable)
--- a/sigrok-meter
+++ b/sigrok-meter
@@ -1,5 +1,4 @@
 #!/usr/bin/env python
-
 ##
 ## This file is part of the sigrok-meter project.
 ##
@@ -26,28 +25,39 @@ import sigrok.core as sr
 import sys
 import textwrap
 
-default_drivers = ['demo:analog_channels=4']
-default_loglevel = sr.LogLevel.WARN
+default_drivers = [('demo:analog_channels=4', 'samplerate=4')]
+default_loglevel = 2
 
 def parse_cli():
     parser = argparse.ArgumentParser(
         description='Simple sigrok GUI for multimeters and dataloggers.',
         epilog=textwrap.dedent('''\
-            The DRIVER string is the same as for sigrok-cli(1).
+            The DRIVER string is the same as for sigrok-cli(1). The nth
+            CONFIG is applied to the nth DRIVER. If there are more drivers
+            than configs, the remaining drivers use the default configuration.
 
-            examples:
+            Examples:
 
               %(prog)s --driver tecpel-dmm-8061-ser:conn=/dev/ttyUSB0
 
               %(prog)s --driver uni-t-ut61e:conn=1a86.e008
+
+              %(prog)s --driver demo:analog_channels=1 \\
+                       --config samplerate=10
         '''),
         formatter_class=argparse.RawDescriptionHelpFormatter)
 
     parser.add_argument('-d', '--driver',
         action='append',
+        default=[],
         help='The driver to use')
+    parser.add_argument('-c', '--config',
+        action='append',
+        default=[],
+        help='Specify device configuration options')
     parser.add_argument('-l', '--loglevel',
         type=int,
+        default=default_loglevel,
         help='Set loglevel (5 is most verbose)')
     parser.add_argument('--pyside',
         action='store_true',
@@ -55,37 +65,40 @@ def parse_cli():
         help='Force use of PySide (default is to use PyQt4)')
     args = parser.parse_args()
 
-    result = {
-        'drivers': default_drivers,
-        'loglevel': default_loglevel,
-        'pyside': args.pyside
-    }
+    if len(args.config) > len(args.driver):
+        sys.exit('Error: More configurations than drivers given.')
 
+    # Merge drivers and configurations into a list of tuples.
+    setattr(args, 'drivers', [])
+    if not args.driver:
+        args.drivers = default_drivers
+        sys.stderr.write('No driver given, using demo driver.\n')
     if args.driver:
-        result['drivers'] = args.driver
-
-    if args.loglevel != None:
-        try:
-            result['loglevel'] = sr.LogLevel.get(args.loglevel)
-        except:
-            sys.exit('error: invalid log level')
+        args.config.extend([''] * (len(args.driver) - len(args.config)))
+        args.drivers = zip(args.driver, args.config)
+    del args.driver
+    del args.config
 
-    return result
+    return args
 
 if __name__ == '__main__':
     args = parse_cli()
 
     import qtcompat
-    qtcompat.load_modules(args['pyside'])
+    qtcompat.load_modules(args.pyside)
     QtCore = qtcompat.QtCore
     QtGui = qtcompat.QtGui
     import mainwindow
 
     context = sr.Context_create()
-    context.log_level = args['loglevel']
+    try:
+        loglevel = sr.LogLevel.get(args.loglevel)
+        context.log_level = loglevel
+    except:
+        sys.exit('Error: invalid log level.')
 
     app = QtGui.QApplication([])
-    s = mainwindow.MainWindow(context, args['drivers'])
+    s = mainwindow.MainWindow(context, args.drivers)
     s.show()
 
     sys.exit(app.exec_())