From: Wolfram Sang <wsa@the-dreams.de>
To: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-sh-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Magnus Damm"
<magnus.damm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Simon Horman" <horms-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>,
"Laurent Pinchart"
<laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org>,
"Geert Uytterhoeven"
<geert-Td1EMuHUCqxL1ZNQvxDV9g@public.gmane.org>,
"Wolfram Sang" <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>,
"Uwe Kleine-König"
<u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
"Geert Uytterhoeven"
<geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
Subject: [PATCH v2 3/4] i2c: slave: add documentation for i2c-slave-eeprom
Date: Mon, 23 Mar 2015 08:26:38 +0000 [thread overview]
Message-ID: <1427099199-3628-4-git-send-email-wsa@the-dreams.de> (raw)
In-Reply-To: <1427099199-3628-1-git-send-email-wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Changes since V1: added acks
Documentation/i2c/slave-eeprom-backend | 14 ++++++++++++++
1 file changed, 14 insertions(+)
create mode 100644 Documentation/i2c/slave-eeprom-backend
diff --git a/Documentation/i2c/slave-eeprom-backend b/Documentation/i2c/slave-eeprom-backend
new file mode 100644
index 00000000000000..c8444ef82acfa3
--- /dev/null
+++ b/Documentation/i2c/slave-eeprom-backend
@@ -0,0 +1,14 @@
+Linux I2C slave eeprom backend
+===============
+
+by Wolfram Sang <wsa@sang-engineering.com> in 2014-15
+
+This is a proof-of-concept backend which acts like an EEPROM on the connected
+I2C bus. The memory contents can be modified from userspace via this file
+located in sysfs:
+
+ /sys/bus/i2c/devices/<device-direcory>/slave-eeprom
+
+As of 2015, Linux doesn't support poll on binary sysfs files, so there is no
+notfication when another master changed the content.
+
--
2.1.4
next prev parent reply other threads:[~2015-03-23 8:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-23 8:26 [PATCH v2 0/4] i2c: slave: API updates Wolfram Sang
2015-03-23 8:26 ` [PATCH v2 1/4] i2c: slave: rework the slave API Wolfram Sang
[not found] ` <1427099199-3628-1-git-send-email-wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
2015-03-23 8:26 ` [PATCH v2 2/4] Documentation: i2c: describe the new slave mode Wolfram Sang
[not found] ` <1427099199-3628-3-git-send-email-wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
2015-03-23 8:45 ` Uwe Kleine-König
[not found] ` <20150323084510.GL5664-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2015-03-23 9:04 ` Wolfram Sang
2015-04-01 12:17 ` Geert Uytterhoeven
2015-04-02 3:38 ` Wolfram Sang
2015-03-23 8:26 ` Wolfram Sang [this message]
2015-03-23 8:26 ` [PATCH v2 4/4] i2c: slave-eeprom: add more info when to increase the pointer Wolfram Sang
[not found] ` <1427099199-3628-5-git-send-email-wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
2015-03-23 8:32 ` Uwe Kleine-König
2015-03-27 8:55 ` [PATCH v2 0/4] i2c: slave: API updates Wolfram Sang
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