BITMAP_PARSELIST(9) Basic Kernel Library Functions BITMAP_PARSELIST(9)
NAME
bitmap_parselist - convert list format ASCII string to bitmap
SYNOPSIS
int bitmap_parselist(const char * bp, unsigned long * maskp, int nmaskbits);
ARGUMENTS
bp
read nul-terminated user string from this buffer
maskp
write resulting mask here
nmaskbits
number of bits in mask to be written
DESCRIPTION
Input format is a comma-separated list of decimal numbers and ranges. Consecutively set bits are shown as two hyphen-separated decimal
numbers, the smallest and largest bit numbers set in the range.
Returns 0 on success, -errno on invalid input strings.
ERROR VALUES
-EINVAL: second number in range smaller than first -EINVAL: invalid character in string -ERANGE: bit number specified too large for mask
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 BITMAP_PARSELIST(9)
