From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
To: Wolfram Sang <wsa@the-dreams.de>
Cc: linux-i2c <linux-i2c@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [RESEND PATCH v2 0/9] eeprom: at24: at24cs series serial number read
Date: Tue, 24 Nov 2015 10:44:36 +0100 [thread overview]
Message-ID: <1448358285-25016-1-git-send-email-bgolaszewski@baylibre.com> (raw)
Chips from the at24cs EEPROM series have an additional read-only memory area
containing a factory pre-programmed serial number. In order to access it, a
dummy write must be executed before reading the serial number bytes.
This series adds support for reading the serial number through a sysfs
attribute.
While we're at it: some of the patches contain readability tweaks and code
organization fixes.
Tested with at24cs64 and at24cs02 chips (for both 16 and 8 bit address
pointers).
(rebased against 4.4-rc2)
v2:
- protect the serial number read with a mutex
v1: https://lkml.org/lkml/2015/10/20/162
Bartosz Golaszewski (9):
eeprom: at24: platform_data: use BIT() macro
eeprom: at24: new flag in platform_data
eeprom: at24: tie up an additional address for at24cs series
eeprom: at24: support reading of the serial number
eeprom: at24: export the serial number through sysfs
eeprom: at24: improve the device_id table readability
eeprom: at24: add the at24cs series to the list of supported devices
eeprom: at24: remove a reduntant if
eeprom: at24: readability tweaks
drivers/misc/eeprom/at24.c | 187 +++++++++++++++++++++++++++++++------
include/linux/platform_data/at24.h | 9 +-
2 files changed, 166 insertions(+), 30 deletions(-)
--
2.1.4
next reply other threads:[~2015-11-24 9:44 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-24 9:44 Bartosz Golaszewski [this message]
2015-11-24 9:44 ` [RESEND PATCH v2 1/9] eeprom: at24: platform_data: use BIT() macro Bartosz Golaszewski
2015-11-24 9:44 ` [RESEND PATCH v2 2/9] eeprom: at24: new flag in platform_data Bartosz Golaszewski
2015-11-24 9:44 ` [RESEND PATCH v2 3/9] eeprom: at24: tie up an additional address for at24cs series Bartosz Golaszewski
2015-11-24 9:44 ` [RESEND PATCH v2 4/9] eeprom: at24: support reading of the serial number Bartosz Golaszewski
2015-11-24 9:44 ` [RESEND PATCH v2 5/9] eeprom: at24: export the serial number through sysfs Bartosz Golaszewski
2015-11-24 9:44 ` [RESEND PATCH v2 6/9] eeprom: at24: improve the device_id table readability Bartosz Golaszewski
2015-11-24 9:44 ` [RESEND PATCH v2 7/9] eeprom: at24: add the at24cs series to the list of supported devices Bartosz Golaszewski
2015-11-24 9:44 ` [RESEND PATCH v2 8/9] eeprom: at24: remove a reduntant if Bartosz Golaszewski
2015-11-24 9:44 ` [RESEND PATCH v2 9/9] eeprom: at24: readability tweaks Bartosz Golaszewski
-- strict thread matches above, loose matches on Subject: below --
2015-12-02 10:25 [RESEND PATCH v2 0/9] eeprom: at24: at24cs series serial number read Bartosz Golaszewski
2015-12-11 12:08 ` Wolfram Sang
2015-12-11 13:55 ` Bartosz Golaszewski
2015-12-21 14:29 ` Bartosz Golaszewski
2016-01-02 20:50 ` Wolfram Sang
2016-01-04 14:01 ` Bartosz Golaszewski
2016-01-05 18:58 ` Wolfram Sang
2016-01-07 16:10 ` Bartosz Golaszewski
2016-01-09 21:09 ` Wolfram Sang
2016-01-11 13:57 ` Bartosz Golaszewski
2015-11-17 9:52 Bartosz Golaszewski
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