" 1. The AcpiTable parameter can match any installed table type.\r\n"\r
" Tables without specific handling will be displayed as a raw hex dump (or\r\n"\r
" dumped to a file if -d is used).\r\n"\r
-" 2. Formatted display and checking is provided for these signature types:\r\n"\r
+" 2. -s option supports to display the specified AcpiTable type that is present\r\n"\r
+" in the system. For normal type AcpiTable, it would display the data of the\r\n"\r
+" AcpiTable and AcpiTable header. The following type may contain header type\r\n"\r
+" other than AcpiTable header. The actual header can refer to the ACPI spec 6.2\r\n"\r
+" Extra A. Particular types:\r\n"\r
" APIC - Multiple APIC Description Table (MADT)\r\n"\r
" BGRT - Boot Graphics Resource Table\r\n"\r
" DBG2 - Debug Port Table 2\r\n"\r
+" DSDT - Differentiated System Description Table\r\n"\r
" FACP - Fixed ACPI Description Table (FADT)\r\n"\r
" GTDT - Generic Timer Description Table\r\n"\r
" IORT - IO Remapping Table\r\n"\r
" SLIT - System Locality Information Table\r\n"\r
" SPCR - Serial Port Console Redirection Table\r\n"\r
" SRAT - System Resource Affinity Table\r\n"\r
+" SSDT - Secondary SystemDescription Table\r\n"\r
" XSDT - Extended System Description Table\r\n"\r
" \r\n"\r
".SH STANDARDS\r\n"\r