Hi Maxime, Thanks for your response! > On Fri, Jan 09, 2015 at 03:45:01PM +0530, Ssagarr Patil wrote: >> >> Hi Maxime, >> >>>>> Thanks for the pointer, I am using spi_write() call and I see /dev/fb0 node created. >>>>> but when I do echo "1121"> /dev/fb0 nothing comes up on oled any pointers on this ? >>>> >>>> You can't use it like that. It's a standard framebuffer, that is >>>> represented as an array of pixels, so you need to use a font rendering >>>> software if you want to output some text. >>>> >>> can fbtest >>> (https://git.kernel.org/cgit/linux/kernel/git/geert/fbtest.git/) >>> be used to to draw something ? >>> >> how do I set pixels of it ? Please if you can point me to some stuff that would be helpful. > > Last time I tried, fbtest didn't support monochrome display. > > And you'll find anything you need in the documentation. > https://www.kernel.org/doc/Documentation/fb/framebuffer.txt > In my case I see that init is done but I dont see any pixels on the screen at all. I am now concerned if the driver was tested in first place ? Thanks And Regards, Sagar -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
