Reads a 'val' field, masked and shifted, given by mask 'field_mask'.
Files
lib_def.h
Prototype
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DEF_BIT_FIELD_RD(val, field_mask);
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Arguments
val
Value to a field from.
field_mask
Mask of field to read.
Returned Value
Field value, masked and right-shifted to bit position 0.
Required Configuration
None.
Notes / Warnings
- 'field_mask' argument must NOT be 0.
- 'field_mask' argument must contain a mask with contiguous set bits.
- 'val' & 'field_mask' SHOULD be unsigned integers.