show USB devices plugged on the virtual USB hub
@item info usbhost
show all USB host devices
+@item info capture
+show information about active capturing
@end table
@item q or quit
@item screendump filename
Save screen into PPM image @var{filename}.
+@item wavcapture filename [frequency [bits [channels]]]
+Capture audio into @var{filename}. Using sample rate @var{frequency}
+bits per sample @var{bits} and number of channels @var{channels}.
+
+Defaults:
+@itemize @minus
+@item Sample rate = 44100 Hz - CD quality
+@item Bits = 16
+@item Number of channels = 2 - Stereo
+@end itemize
+
+@item stopcapture index
+Stop capture with a given @var{index}, index can be obtained with
+@example
+info capture
+@end example
+
@item log item1[,...]
Activate logging of the specified items to @file{/tmp/qemu.log}.