Around 11 o'clock on Oct 3, "Guillaume Weymeskirch" wrote: > I would like to run the optimized KDrive / Tiny-X server on a custom grey > lcd screen, which is 320x240x4bpp in a no-planar, packed pixels format > (i.e: 2 adjacent pixels per byte). That's the format used by the frame buffer code in the X server, assuming that the pixels are in the same order as bytes within a word (e.g. on a little-endian machine, the pixel formed from the low four bits in each byte should be displayed to the left of the pixel in the high four bits) > After have searched in the mailing-list archives here (newbies and XPert), > Il successfully cross-compiled kdrive, but I found no information about > fbdev used in the 4bpp format. If I had a working 2.4 kernel framebuffer > driver for my lcd, could I use kdrive with it ? Yes, if you build a kernel frame buffer driver, Xfbdev will support it. > In the itsy directory, it seems to be no drawing functions for 16 grey > levels, only an itsy hardware interface - like lcd init or palette > settings. So I assume the Itsy driver uses in fact framebuffer functions > for drawing... You shouldn't need to write any new code for the X server. The Itsy directory exists because the Itsy didn't provide a kernel frame buffer interface, but rather a custom interface. Xfbdev is used without change on the 4-bit gray scale iPAQ hardware. Keith Packard XFree86 Core Team HP Cambridge Research Lab _______________________________________________ Newbie@XFree86.Org *** To unsubscribe , or change message options, see: http://XFree86.Org/mailman/listinfo/newbie
