From: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006-hi6Y0CQ0nG0@public.gmane.org>
To: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: Linux Kernel Mailing List
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: IT8716F SPI driver submission?
Date: Sat, 29 Sep 2007 15:45:37 +0200 [thread overview]
Message-ID: <46FE5701.2030000@gmx.net> (raw)
Hi!
I have written a rough code skeleton to be able to use the ITE IT8716F
Super I/O chip as SPI host/master. The code works fine in userspace, but
the Linux kernel SPI framework looks like it could save me from
implementing full support for SPI flash clients/slaves. That's why I'd
like to rewrite my code in a manner that's suitable for kernel inclusion.
The IT8716F accepts commands byte-wise and does all of the lifting on
the SPI bus as well. There are limitations, though:
- It can send 1,2,4,5 bytes (including command byte) to the slave and
read 0,1,2,3 bytes back. Other values are not possible.
- Bus clock rate is either 33 MHz or 16.5 MHz.
Is there any driver I can start from as reference?
Regards,
Carl-Daniel
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WARNING: multiple messages have this Message-ID (diff)
From: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
To: spi-devel-general@lists.sourceforge.net
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: IT8716F SPI driver submission?
Date: Sat, 29 Sep 2007 15:45:37 +0200 [thread overview]
Message-ID: <46FE5701.2030000@gmx.net> (raw)
Hi!
I have written a rough code skeleton to be able to use the ITE IT8716F
Super I/O chip as SPI host/master. The code works fine in userspace, but
the Linux kernel SPI framework looks like it could save me from
implementing full support for SPI flash clients/slaves. That's why I'd
like to rewrite my code in a manner that's suitable for kernel inclusion.
The IT8716F accepts commands byte-wise and does all of the lifting on
the SPI bus as well. There are limitations, though:
- It can send 1,2,4,5 bytes (including command byte) to the slave and
read 0,1,2,3 bytes back. Other values are not possible.
- Bus clock rate is either 33 MHz or 16.5 MHz.
Is there any driver I can start from as reference?
Regards,
Carl-Daniel
next reply other threads:[~2007-09-29 13:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-29 13:45 Carl-Daniel Hailfinger [this message]
2007-09-29 13:45 ` IT8716F SPI driver submission? Carl-Daniel Hailfinger
[not found] ` <46FE5701.2030000-hi6Y0CQ0nG0@public.gmane.org>
2007-09-29 20:39 ` David Brownell
2007-09-29 20:39 ` [spi-devel-general] " David Brownell
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