Hi, In the 'scsi_cmnd' structure, there are two entries holding address information for data to be transferred. One is 'request_buffer' and the other one is 'buffer'. In case of 'use_sg' is non-zero, those entries indicates the address of the scatter-gather table. Is there way to get virtual address (so that the data could be accessed by the driver) of the actual data in the case of 'use_sg' is non-zero? Any comments would be appreciated. Thank you, Seokmann - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html