SVID and SSID

What is the SVID and SSID?
SVID - Subsystem Vendor ID
SSID - Subsystem ID

Where is the SVID and SSID?
The SVID will be filled in PCI device register offset 0x2C to 0x2D (2 Bytes) by BIOS.
The SSID will be filled in PCI device register offset 0x2E to 0x2F (2 Bytes) by BIOS.

What can the SVID and SSID do?
The SVID and SSID can provide device driver to recongize in order to determine what driver function needs to be supported.

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什麼是SVID和SSID?
SVID - Subsystem Vendor ID
SSID - Subsystem ID

BIOS要在哪裡去填SVID和SSID?
BIOS應該在PCI裝置上的0x2C到0x2D (2 Bytes)去填SVID
BIOS應該在PCI裝置上的0x2E到0x2F (2 Bytes)去填SSID

SVID和SSID的功用?
SVID和SSID可以提供裝置的驅動程式去辦別什麼功能是需要被支援(使用)的，如此一來裝置製造商也可以為很多裝置提供共用的驅動程式。