Chapter 3. Basic Kernel Library Functions
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Chapter 3. Basic Kernel Library Functions
Table of Contents
Bitmap Operations
Command-line Parsing
CRC Functions
idr/ida Functions
The Linux kernel provides more basic utility functions.
Bitmap Operations
__bitmap_shift_right
- logical right shift of the bits in a bitmap
__bitmap_shift_left
- logical left shift of the bits in a bitmap
bitmap_scnprintf
- convert bitmap to an ASCII hex string.
__bitmap_parse
- convert an ASCII hex string into a bitmap.
bitmap_parse_user
- convert an ASCII hex string in a user buffer into a bitmap
bitmap_scnlistprintf
- convert bitmap to list format ASCII string
bitmap_parselist_user
-
bitmap_remap
- Apply map defined by a pair of bitmaps to another bitmap
bitmap_bitremap
- Apply map defined by a pair of bitmaps to a single bit
bitmap_onto
- translate one bitmap relative to another
bitmap_fold
- fold larger bitmap into smaller, modulo specified size
bitmap_find_free_region
- find a contiguous aligned mem region
bitmap_release_region
- release allocated bitmap region
bitmap_allocate_region
- allocate bitmap region
bitmap_copy_le
- copy a bitmap, putting the bits into little-endian order.
__bitmap_parselist
- convert list format ASCII string to bitmap
bitmap_pos_to_ord
- find ordinal of set bit at given position in bitmap
bitmap_ord_to_pos
- find position of n-th set bit in bitmap