On Tue, 4 Nov 2008, Tomi Valkeinen wrote:

+Sysfs
+-----
+The sysfs interface is a hack, but works for testing. I don't think sysfs
+interface is the best for this in the final version, but I don't quite know
+what would be the best interfaces for these things.
+
+In /sys/devices/platform/omapfb we have four files: framebuffers,
+overlays, managers and displays. You can read them so see the current
+setup, and change them by writing to it in the form of
+"<item-id> <opt1>:<val1> <opt2>:<val2>..."
+
+"framebuffers" lists all framebuffers. Its format is:
+	<fb number>
+	t:<target overlay>
+
+"overlays" lists all overlays. Its format is:
+	<overlay name>
+	t:<target manager>
+	x:<xpos>
+	y:<ypos>
+	iw:<input width, read only>
+	ih:<input height, read only>
+	w:<output width>
+	h:<output height>
+	e:<enabled>
+
+"managers" lists all overlay managers. Its format is:
+	<manager name>
+	t:<target display>
+
+"displays" lists all displays. Its format is:
+	<display name>
+	w:<width>
+	h:<height>
+	e:<enabled>
+	u:<update mode>
+	t:<tear sync on/off>

As all of these contain lists of sections (one for each
fb/overlay/manager/display), what about making them directories, with each
section an individual file?

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds