KSTRTOBOOL(9)                       Basic C Library Functions                       KSTRTOBOOL(9)



NAME
       kstrtobool - convert common user inputs into boolean values

SYNOPSIS
       int kstrtobool(const char * s, bool * res);

ARGUMENTS
       s
           input string

       res
           result

DESCRIPTION
       This routine returns 0 iff the first character is one of 'Yy1Nn0', or [oO][NnFf] for “on”
       and “off”. Otherwise it will return -EINVAL. Value pointed to by res is updated upon
       finding a match.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                             KSTRTOBOOL(9)