From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ssagarr Patil Date: Thu, 08 Jan 2015 18:26:03 +0000 Subject: RE: SSD1306 OLED driver Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev@vger.kernel.org Hi Maxim, >>> >> 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 ? Thanks And Regards, Sagar