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.TH "nvme_ctrl_get_fd" 9 "nvme_ctrl_get_fd" "November 2024" "libnvme API manual" LINUX
.SH NAME
nvme_ctrl_get_fd \- Get associated file descriptor
.SH SYNOPSIS
.B "int" nvme_ctrl_get_fd
.BI "(nvme_ctrl_t c " ");"
.SH ARGUMENTS
.IP "c" 12
Controller instance
.SH "DESCRIPTION"
libnvme will \fBopen\fP 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
\fBnvme_ctrl_release_fd\fP is called.
.SH "RETURN"
File descriptor associated with \fIc\fP or -1
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