24 lines
873 B
Groff
24 lines
873 B
Groff
.TH "nvme_get_feature_length2" 9 "nvme_get_feature_length2" "November 2024" "libnvme API manual" LINUX
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.SH NAME
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nvme_get_feature_length2 \- Retreive the command payload length for a specific feature identifier
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.SH SYNOPSIS
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.B "int" nvme_get_feature_length2
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.BI "(int fid " ","
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.BI "__u32 cdw11 " ","
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.BI "enum nvme_data_tfr dir " ","
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.BI "__u32 *len " ");"
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.SH ARGUMENTS
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.IP "fid" 12
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Feature identifier, see \fIenum nvme_features_id\fP.
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.IP "cdw11" 12
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The cdw11 value may affect the transfer (only known fid is
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NVME_FEAT_FID_HOST_ID)
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.IP "dir" 12
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Data transfer direction: false - host to controller, true -
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controller to host may affect the transfer (only known fid is
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NVME_FEAT_FID_HOST_MEM_BUF).
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.IP "len" 12
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On success, set to this features payload length in bytes.
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.SH "RETURN"
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0 on success, -1 with errno set to EINVAL if the function did not
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recognize \fIfid\fP.
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