Name
__bitmap_parselist —
convert list format ASCII string to bitmap
Synopsis
int __bitmap_parselist ( | const char * buf, |
| unsigned int buflen, |
| int is_user, |
| unsigned long * maskp, |
| int nmaskbits) ; |
Arguments
buf
-- undescribed --
buflen
buffer size in bytes. If string is smaller than this
then it must be terminated with a \0.
is_user
location of buffer, 0 indicates kernel space
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