On 02/10/2012 09:47 PM, Dan Carpenter wrote:
> On Fri, Feb 10, 2012 at 11:45:31PM +0300, Dan Carpenter wrote:
>> On Fri, Feb 10, 2012 at 07:15:00PM +0100, Lars-Peter Clausen wrote:
>>> Add macros for extracting whether the event is for a differential channel and
>>> the second channel number from the event code. These were the only two fields
>>> which did not have such an macro yet.
>>>
>>> Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
>>> Acked-by: Jonathan Cameron <jic23@xxxxxxxxxx>
>>> ---
>>> drivers/staging/iio/events.h | 2 ++
>>> 1 files changed, 2 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/drivers/staging/iio/events.h b/drivers/staging/iio/events.h
>>> index 416800e..c25f0e3 100644
>>> --- a/drivers/staging/iio/events.h
>>> +++ b/drivers/staging/iio/events.h
>>> @@ -97,7 +97,9 @@ enum iio_event_direction {
>>> /* Event code number extraction depends on which type of event we have.
>>> * Perhaps review this function in the future*/
>>> #define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((__s16)(mask & 0xFFFF))
>>> +#define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((__s16)(((mask) >> 16) & 0xFFFF))
>>>
>>> #define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
>>> +#define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)
>>>
>>
>> Breaks the build.
>>
>
> Oops. This isn't a rename. It doesn't break the build. Why are
> we adding macros which nobody uses?
Patch 4 in this series adds a user.
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