I'm trying to use the pxafb driver on mach-pxa, but I can't mmap the framebuffer memory. I can access it from the driver, filling the entire screen, but when I access the pointer returned from mmap from a user space program, the following two things happens:
- the vm_pgoff is ignored and I get the start of the internal buffer, which caused writing to the palette and DMA descriptors - when I change the location of the framebuffer to the start of the internal buffer, I can write to the screen, but only to the first 4 k; any write after this address is ignored, but no segfault is generated. Any ideas what I can do to find the reason? I don't think that it is a kernel bug, but perhaps a wrong configuration for my platform. -- Frank Buß, [EMAIL PROTECTED] http://www.frank-buss.de, http://www.it4-systems.de - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
