NAME

       nvme_ctrl_get_fd - Get associated file descriptor

SYNOPSIS

       int nvme_ctrl_get_fd (nvme_ctrl_t c );

ARGUMENTS

       c           Controller instance

DESCRIPTION

       libnvme  will  open the file (if not already opened) and keep an internal copy of the file
       descriptor. Following calls to this API retrieve the internal  cached  copy  of  the  file
       descriptor. The file will remain opened and the fd will remain cached until the controller
       object is deleted or nvme_ctrl_release_fd is called.

RETURN

       File descriptor associated with c or -1