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iio: core: iio_chan_spec_ext_info: Add private handle
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 <michael.hennerich@analog.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
73e016ef94
commit
fc6d11398e
4 changed files with 22 additions and 12 deletions
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@ -281,7 +281,7 @@ static ssize_t iio_read_channel_ext_info(struct device *dev,
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ext_info = &this_attr->c->ext_info[this_attr->address];
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return ext_info->read(indio_dev, this_attr->c, buf);
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return ext_info->read(indio_dev, ext_info->private, this_attr->c, buf);
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}
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static ssize_t iio_write_channel_ext_info(struct device *dev,
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@ -295,7 +295,8 @@ static ssize_t iio_write_channel_ext_info(struct device *dev,
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ext_info = &this_attr->c->ext_info[this_attr->address];
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return ext_info->write(indio_dev, this_attr->c, buf, len);
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return ext_info->write(indio_dev, ext_info->private,
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this_attr->c, buf, len);
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}
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static ssize_t iio_read_channel_info(struct device *dev,
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@ -144,14 +144,14 @@ static const char ad5064_powerdown_modes[][15] = {
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};
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static ssize_t ad5064_read_powerdown_mode_available(struct iio_dev *indio_dev,
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const struct iio_chan_spec *chan, char *buf)
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uintptr_t private, const struct iio_chan_spec *chan, char *buf)
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{
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return sprintf(buf, "%s %s %s\n", ad5064_powerdown_modes[1],
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ad5064_powerdown_modes[2], ad5064_powerdown_modes[3]);
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}
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static ssize_t ad5064_read_powerdown_mode(struct iio_dev *indio_dev,
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const struct iio_chan_spec *chan, char *buf)
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uintptr_t private, const struct iio_chan_spec *chan, char *buf)
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{
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struct ad5064_state *st = iio_priv(indio_dev);
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@ -160,7 +160,8 @@ static ssize_t ad5064_read_powerdown_mode(struct iio_dev *indio_dev,
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}
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static ssize_t ad5064_write_powerdown_mode(struct iio_dev *indio_dev,
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const struct iio_chan_spec *chan, const char *buf, size_t len)
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uintptr_t private, const struct iio_chan_spec *chan, const char *buf,
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size_t len)
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{
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struct ad5064_state *st = iio_priv(indio_dev);
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unsigned int mode, i;
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@ -187,7 +188,7 @@ static ssize_t ad5064_write_powerdown_mode(struct iio_dev *indio_dev,
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}
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static ssize_t ad5064_read_dac_powerdown(struct iio_dev *indio_dev,
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const struct iio_chan_spec *chan, char *buf)
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uintptr_t private, const struct iio_chan_spec *chan, char *buf)
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{
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struct ad5064_state *st = iio_priv(indio_dev);
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@ -195,7 +196,8 @@ static ssize_t ad5064_read_dac_powerdown(struct iio_dev *indio_dev,
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}
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static ssize_t ad5064_write_dac_powerdown(struct iio_dev *indio_dev,
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const struct iio_chan_spec *chan, const char *buf, size_t len)
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uintptr_t private, const struct iio_chan_spec *chan, const char *buf,
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size_t len)
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{
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struct ad5064_state *st = iio_priv(indio_dev);
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bool pwr_down;
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@ -46,13 +46,14 @@ static const char * const ad5446_powerdown_modes[] = {
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};
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static ssize_t ad5446_read_powerdown_mode_available(struct iio_dev *indio_dev,
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const struct iio_chan_spec *chan, char *buf)
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uintptr_t private, const struct iio_chan_spec *chan, char *buf)
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{
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return sprintf(buf, "%s %s %s\n", ad5446_powerdown_modes[1],
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ad5446_powerdown_modes[2], ad5446_powerdown_modes[3]);
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}
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static ssize_t ad5446_write_powerdown_mode(struct iio_dev *indio_dev,
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uintptr_t private,
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const struct iio_chan_spec *chan,
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const char *buf, size_t len)
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{
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@ -73,6 +74,7 @@ static ssize_t ad5446_write_powerdown_mode(struct iio_dev *indio_dev,
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}
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static ssize_t ad5446_read_powerdown_mode(struct iio_dev *indio_dev,
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uintptr_t private,
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const struct iio_chan_spec *chan,
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char *buf)
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{
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@ -82,6 +84,7 @@ static ssize_t ad5446_read_powerdown_mode(struct iio_dev *indio_dev,
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}
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static ssize_t ad5446_read_dac_powerdown(struct iio_dev *indio_dev,
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uintptr_t private,
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const struct iio_chan_spec *chan,
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char *buf)
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{
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@ -91,6 +94,7 @@ static ssize_t ad5446_read_dac_powerdown(struct iio_dev *indio_dev,
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}
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static ssize_t ad5446_write_dac_powerdown(struct iio_dev *indio_dev,
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uintptr_t private,
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const struct iio_chan_spec *chan,
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const char *buf, size_t len)
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{
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@ -111,14 +111,17 @@ struct iio_dev;
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* @shared: Whether this attribute is shared between all channels.
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* @read: Read callback for this info attribute, may be NULL.
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* @write: Write callback for this info attribute, may be NULL.
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* @private: Data private to the driver.
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*/
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struct iio_chan_spec_ext_info {
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const char *name;
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bool shared;
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ssize_t (*read)(struct iio_dev *, struct iio_chan_spec const *,
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char *buf);
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ssize_t (*write)(struct iio_dev *, struct iio_chan_spec const *,
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const char *buf, size_t len);
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ssize_t (*read)(struct iio_dev *, uintptr_t private,
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struct iio_chan_spec const *, char *buf);
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ssize_t (*write)(struct iio_dev *, uintptr_t private,
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struct iio_chan_spec const *, const char *buf,
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size_t len);
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uintptr_t private;
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};
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/**
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