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[directfb-users] Re: Questions about DirectFB Readme
Ville Syrjälä wrote: > > On Thu, Aug 12, 2004 at 07:52:16PM +0200, Otto Wyss wrote: > freetype is required for the ft2 font provider. It's not strictly > necessary but highly recommended. Without it DirectFB apps can only use > one compiled in font. > > libjpeg, libpng are used by the image providers. Again they aren't > strictly necessary but without them DirectFB apps can't access jpeg and > png images. > That means to build DirectFB the devel version of these packages are _required_ but for running DirectFB they aren't but recommended. > > 2. The Readme mentions the following access rights > > crw-rw---- 1 root tty 29, 0 /dev/fb0 > > This is required. > > > crw-rw---- 1 root tty 10, 1 /dev/psaux > > Only needed if you use the ps2mouse input driver. > > > crw-rw---- 1 root tty 4, 0 /dev/tty0 > > It's required by the vt code. > I'm more concerned about the security of the devices, on a standard Debian/sarge system they are secured as crw------- 1 root tty 29, 0 /dev/fb0 crw------- 1 root tty 10, 1 /dev/psaux crw------- 1 root tty 4, 0 /dev/tty0 And neither X nor console seems to have a problem in accessing them, why needs DirectFB "crw-rw----"? > > 3. Kernel tmpfs > > mount tmpfs /dev/shm -ttmpfs > > Is this really needed? Why? > > It's used for shared memory. You only need it if you use the multi-app > core. Most distros already have it mounted since other apps/libs might use > it too. > Debian does as well, anyway if it's mentioned in the Readme that it's already mounted would probably remove any confusion. O. Wyss -- See a huge pile of work at "http://wyodesktop.sourceforge.net/"