- * scsi_send_eh_cmnd - send a cmd to a device as part of error recovery.
- * @scmd: SCSI Cmd to send.
- * @timeout: Timeout for cmd.
+ * scsi_send_eh_cmnd - submit a scsi command as part of error recory
+ * @scmd: SCSI command structure to hijack
+ * @cmnd: CDB to send
+ * @cmnd_size: size in bytes of @cmnd
+ * @timeout: timeout for this request
+ * @copy_sense: request sense data if set to 1
+ *
+ * This function is used to send a scsi command down to a target device
+ * as part of the error recovery process. If @copy_sense is 0 the command
+ * sent must be one that does not transfer any data. If @copy_sense is 1
+ * the command must be REQUEST_SENSE and this functions copies out the
+ * sense buffer it got into @scmd->sense_buffer.