low level host parallel port access

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1611 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 13 insertions, 1 deletions

diff --git a/qemu-doc.texi b/qemu-doc.texi
index 253484fcd..41b742278 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -364,8 +364,11 @@ Virtual console
 @item null
 void device
 @item /dev/XXX
-[Linux only]Use host tty, e.g. @file{/dev/ttyS0}. The host serial port
+[Linux only] Use host tty, e.g. @file{/dev/ttyS0}. The host serial port
 parameters are set according to the emulated ones.
+@item /dev/parportN
+[Linux only, parallel port only] Use host parallel port
+@var{N}. Currently only SPP parallel port features can be used.
 @item file:filename
 Write output to filename. No character can be read.
 @item stdio
@@ -379,6 +382,15 @@ non graphical mode.
 This option can be used several times to simulate up to 4 serials
 ports.
 
+@item -parallel dev
+Redirect the virtual parallel port to host device @var{dev} (same
+devices as the serial port). On Linux hosts, @file{/dev/parportN} can
+be used to use hardware devices connected on the corresponding host
+parallel port.
+
+This option can be used several times to simulate up to 3 parallel
+ports.
+
 @item -monitor dev
 Redirect the monitor to host device @var{dev} (same devices as the
 serial port).