
Known limitations © 2007, QNX Software Systems GmbH & Co. KG.
Photon and text mode
If you’re using Photon as well as text mode, you won’t be able to switch between them
and use a USB keyboard once the USB stack has been started.
From a cold boot, you’ll be able to use a USB keyboard in text mode before the USB
stack has been started. As soon as you start the USB stack, you can’t use a USB
keyboard in text mode.
CAUTION:
Make sure that the command line for
devi-hirun (or Input) includes the option to
not reset the keyboard controller. For example:
devi-hirun kbd -R fd -d/dev/usbkbd0 &
Or with QNX 4:
Input kbd -R fd -d/dev/usbkbd0 &
If you don’t use the -R option, then the keyboard controller will be reset whenever you
switch between Photon and text mode, and the machine may hang.
!
4 Chapter 1 • Before You Begin September 10, 2007
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