From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ch1ehsobe004.messaging.microsoft.com ([216.32.181.184]:20345 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755555Ab2DZMeQ (ORCPT ); Thu, 26 Apr 2012 08:34:16 -0400 From: To: CC: , , Michael Hennerich Subject: [PATCH 4/4] iio: core: iio_chan_spec_ext_info: Add private handle Date: Thu, 26 Apr 2012 14:34:03 +0200 Message-ID: <1335443643-20439-4-git-send-email-michael.hennerich@analog.com> In-Reply-To: <1335443643-20439-1-git-send-email-michael.hennerich@analog.com> References: <1335443643-20439-1-git-send-email-michael.hennerich@analog.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org From: Michael Hennerich There is currently no user, but we might need it in future. So better add it now, before we have to convert drivers afterwards. Signed-off-by: Michael Hennerich --- drivers/iio/industrialio-core.c | 5 +++-- drivers/staging/iio/dac/ad5064.c | 12 +++++++----- drivers/staging/iio/dac/ad5446.c | 6 +++++- include/linux/iio/iio.h | 11 +++++++---- 4 files changed, 22 insertions(+), 12 deletions(-) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 1c55d2b..8f72ab8 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -281,7 +281,7 @@ static ssize_t iio_read_channel_ext_info(struct device *dev, ext_info = &this_attr->c->ext_info[this_attr->address]; - return ext_info->read(indio_dev, this_attr->c, buf); + return ext_info->read(indio_dev, ext_info->private, this_attr->c, buf); } static ssize_t iio_write_channel_ext_info(struct device *dev, @@ -295,7 +295,8 @@ static ssize_t iio_write_channel_ext_info(struct device *dev, ext_info = &this_attr->c->ext_info[this_attr->address]; - return ext_info->write(indio_dev, this_attr->c, buf, len); + return ext_info->write(indio_dev, ext_info->private, + this_attr->c, buf, len); } static ssize_t iio_read_channel_info(struct device *dev, diff --git a/drivers/staging/iio/dac/ad5064.c b/drivers/staging/iio/dac/ad5064.c index c0fad4f..e06f1d1 100644 --- a/drivers/staging/iio/dac/ad5064.c +++ b/drivers/staging/iio/dac/ad5064.c @@ -144,14 +144,14 @@ static const char ad5064_powerdown_modes[][15] = { }; static ssize_t ad5064_read_powerdown_mode_available(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, char *buf) + uintptr_t private, const struct iio_chan_spec *chan, char *buf) { return sprintf(buf, "%s %s %s\n", ad5064_powerdown_modes[1], ad5064_powerdown_modes[2], ad5064_powerdown_modes[3]); } static ssize_t ad5064_read_powerdown_mode(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, char *buf) + uintptr_t private, const struct iio_chan_spec *chan, char *buf) { struct ad5064_state *st = iio_priv(indio_dev); @@ -160,7 +160,8 @@ static ssize_t ad5064_read_powerdown_mode(struct iio_dev *indio_dev, } static ssize_t ad5064_write_powerdown_mode(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, const char *buf, size_t len) + uintptr_t private, const struct iio_chan_spec *chan, const char *buf, + size_t len) { struct ad5064_state *st = iio_priv(indio_dev); unsigned int mode, i; @@ -187,7 +188,7 @@ static ssize_t ad5064_write_powerdown_mode(struct iio_dev *indio_dev, } static ssize_t ad5064_read_dac_powerdown(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, char *buf) + uintptr_t private, const struct iio_chan_spec *chan, char *buf) { struct ad5064_state *st = iio_priv(indio_dev); @@ -195,7 +196,8 @@ static ssize_t ad5064_read_dac_powerdown(struct iio_dev *indio_dev, } static ssize_t ad5064_write_dac_powerdown(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, const char *buf, size_t len) + uintptr_t private, const struct iio_chan_spec *chan, const char *buf, + size_t len) { struct ad5064_state *st = iio_priv(indio_dev); bool pwr_down; diff --git a/drivers/staging/iio/dac/ad5446.c b/drivers/staging/iio/dac/ad5446.c index 62ad1d5..55e34d4 100644 --- a/drivers/staging/iio/dac/ad5446.c +++ b/drivers/staging/iio/dac/ad5446.c @@ -46,13 +46,14 @@ static const char * const ad5446_powerdown_modes[] = { }; static ssize_t ad5446_read_powerdown_mode_available(struct iio_dev *indio_dev, - const struct iio_chan_spec *chan, char *buf) + uintptr_t private, const struct iio_chan_spec *chan, char *buf) { return sprintf(buf, "%s %s %s\n", ad5446_powerdown_modes[1], ad5446_powerdown_modes[2], ad5446_powerdown_modes[3]); } static ssize_t ad5446_write_powerdown_mode(struct iio_dev *indio_dev, + uintptr_t private, const struct iio_chan_spec *chan, const char *buf, size_t len) { @@ -73,6 +74,7 @@ static ssize_t ad5446_write_powerdown_mode(struct iio_dev *indio_dev, } static ssize_t ad5446_read_powerdown_mode(struct iio_dev *indio_dev, + uintptr_t private, const struct iio_chan_spec *chan, char *buf) { @@ -82,6 +84,7 @@ static ssize_t ad5446_read_powerdown_mode(struct iio_dev *indio_dev, } static ssize_t ad5446_read_dac_powerdown(struct iio_dev *indio_dev, + uintptr_t private, const struct iio_chan_spec *chan, char *buf) { @@ -91,6 +94,7 @@ static ssize_t ad5446_read_dac_powerdown(struct iio_dev *indio_dev, } static ssize_t ad5446_write_dac_powerdown(struct iio_dev *indio_dev, + uintptr_t private, const struct iio_chan_spec *chan, const char *buf, size_t len) { diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 0e826af..263b430 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -111,14 +111,17 @@ struct iio_dev; * @shared: Whether this attribute is shared between all channels. * @read: Read callback for this info attribute, may be NULL. * @write: Write callback for this info attribute, may be NULL. + * @private: Data private to the driver. */ struct iio_chan_spec_ext_info { const char *name; bool shared; - ssize_t (*read)(struct iio_dev *, struct iio_chan_spec const *, - char *buf); - ssize_t (*write)(struct iio_dev *, struct iio_chan_spec const *, - const char *buf, size_t len); + ssize_t (*read)(struct iio_dev *, uintptr_t private, + struct iio_chan_spec const *, char *buf); + ssize_t (*write)(struct iio_dev *, uintptr_t private, + struct iio_chan_spec const *, const char *buf, + size_t len); + uintptr_t private; }; /** -- 1.7.0.4