.TH "libnvme" 9 "enum nvme_data_tfr" "May 2024" "API Manual" LINUX .SH NAME enum nvme_data_tfr \- Data transfer direction of the command .SH SYNOPSIS enum nvme_data_tfr { .br .BI " NVME_DATA_TFR_NO_DATA_TFR" , .br .br .BI " NVME_DATA_TFR_HOST_TO_CTRL" , .br .br .BI " NVME_DATA_TFR_CTRL_TO_HOST" , .br .br .BI " NVME_DATA_TFR_BIDIRECTIONAL" }; .SH Constants .IP "NVME_DATA_TFR_NO_DATA_TFR" 12 No data transfer .IP "NVME_DATA_TFR_HOST_TO_CTRL" 12 Host to controller .IP "NVME_DATA_TFR_CTRL_TO_HOST" 12 Controller to host .IP "NVME_DATA_TFR_BIDIRECTIONAL" 12 Bidirectional