From: "maxime.ripard@free-electrons.com" <maxime.ripard@free-electrons.com>
To: linux-fbdev@vger.kernel.org
Subject: Re: SSD1306 OLED driver
Date: Thu, 08 Jan 2015 09:33:31 +0000 [thread overview]
Message-ID: <20150108093331.GO7853@lukather> (raw)
In-Reply-To: <BAY176-W246A4D5C3A23D1928FC5D3D38C0@phx.gbl>
[-- Attachment #1: Type: text/plain, Size: 643 bytes --]
On Tue, Jan 06, 2015 at 06:30:01PM +0530, Ssagarr Patil wrote:
> > It's probably even easier with SPI. Have you considered reading
> > include/spi/spi.h?
> >
> 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.
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
next prev parent reply other threads:[~2015-01-08 9:33 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-14 11:51 SSD1306 OLED driver Ssagarr Patil
2014-11-16 9:50 ` maxime.ripard
2014-11-18 14:59 ` Ssagarr Patil
2014-11-18 15:20 ` maxime.ripard
2015-01-05 11:15 ` Ssagarr Patil
2015-01-05 13:47 ` maxime.ripard
2015-01-06 13:12 ` Ssagarr Patil
2015-01-08 9:33 ` maxime.ripard [this message]
2015-01-08 18:26 ` Ssagarr Patil
2015-01-09 10:27 ` Ssagarr Patil
2015-01-09 11:03 ` maxime.ripard
2015-01-09 12:55 ` Ssagarr Patil
2015-01-09 13:58 ` Geert Uytterhoeven
2015-01-09 22:23 ` maxime.ripard
2015-01-09 22:31 ` maxime.ripard
2015-01-10 0:03 ` Noralf Tronnes
2015-01-10 12:46 ` Ssagarr Patil
2015-01-10 13:50 ` Noralf Tronnes
2015-01-10 21:19 ` Ssagarr Patil
2015-01-11 14:20 ` Noralf Tronnes
2015-01-12 9:56 ` Ssagarr Patil
2015-01-12 14:30 ` Noralf Tronnes
2015-01-13 13:45 ` Ssagarr Patil
2015-01-14 13:51 ` Ssagarr Patil
2015-01-14 15:27 ` Geert Uytterhoeven
2015-01-14 16:17 ` Ssagarr Patil
2015-01-14 16:38 ` Ssagarr Patil
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150108093331.GO7853@lukather \
--to=maxime.ripard@free-electrons.com \
--cc=linux-fbdev@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.