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  1. 15 5月, 2012 1 次提交
  3. 09 5月, 2012 2 次提交
  5. 30 4月, 2012 3 次提交
  7. 26 4月, 2012 2 次提交
  9. 19 4月, 2012 3 次提交
  11. 14 4月, 2012 1 次提交
  13. 08 3月, 2012 1 次提交
  15. 03 3月, 2012 3 次提交
  17. 25 2月, 2012 2 次提交
    • L
      staging:iio: Add extended IIO channel info · 5f420b42
      由 Lars-Peter Clausen 提交于 
      Sometimes devices have per channel properties which either do not map nicely to
the current channel info scheme (e.g. string properties) or are very device
specific, so it does not make sense to add generic support for them.

Currently drivers define these attributes by hand for each channel. Depending on
the number of channels this can amount to quite a few lines of boilerplate code.
Especially if a driver supports multiple variations of a chip with different
numbers of channels. In this case it becomes necessary to have a individual
attribute list per chip variation and also a individual iio_info struct.

This patch introduces a new scheme for handling such per channel attributes
called extended channel info attributes. A extended channel info attribute
consist of a name, a flag whether it is shared and read and write callbacks.
The read and write callbacks are similar to the {read,write}_raw callbacks and
take a IIO device and a channel as their first parameters, but instead of
pre-parsed integer values they directly get passed the raw string value, which
has been written to the sysfs file.

It is possible to assign a list of extended channel info attributes to a
channel. For each extended channel info attribute the IIO core will create a new
sysfs attribute conforming to the IIO channel naming spec for the channels type,
similar as for normal info attributes. Read and write access to this sysfs
attribute will be redirected to the extended channel info attributes read and
write callbacks.
Signed-off-by: NLars-Peter Clausen <lars@metafoo.de>
Acked-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      5f420b42
    • J
      staging:iio:core set the iio_dev.info pointer to null on unregister under lock. · ac917a81
      由 Jonathan Cameron 提交于 
      This prevents use of provider callbacks after it has been unregistered.
Note that all code using this that can be called from a consumer *must*
check the pointer before using and hold the info_exist_lock throughout
the usage of the callbacks in info.
Signed-off-by: NJonathan Cameron <jic23@kernel.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      ac917a81
  19. 10 2月, 2012 2 次提交
  21. 23 12月, 2011 2 次提交
  23. 09 12月, 2011 1 次提交
  25. 30 11月, 2011 1 次提交
  27. 28 11月, 2011 1 次提交
  29. 27 11月, 2011 8 次提交
  31. 22 11月, 2011 1 次提交
  33. 18 10月, 2011 1 次提交
  35. 11 10月, 2011 1 次提交
  37. 06 10月, 2011 1 次提交
  39. 27 9月, 2011 3 次提交