Hello there, I was looking into scsi_cmnd.h I found the following of scsi_cmnd structure: 105 #define SCSI_SENSE_BUFFERSIZE 96 106 unsigned char *sense_buffer; 107 /* obtained by REQUEST SENSE when 108 * CHECK CONDITION is received on original 109 * command (auto-sense) */ SPC defines the maximum length of sense data to be 252 bytes. Why it is defined such in Linux? Sorry if it is a frequently asked question. Thanks, Aaron -- To unsubscribe from this list: 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