Dell Revisions and IDs (Type 208)

Source: Dell libsmbios, doc/smbios23.xml.

The source gives the structure a length of 0x0C, while the firmware of Dell systems writes structures of other lengths too: shorter ones end after the system ID extension, at 0x0A, and have no dates, and longer ones carry bytes past the first power-on date which no source describes.

Table 1. Dell Revisions and IDs structure
Offset	Version	Name	Length	Value	Description
`0x00`	2.2+	Type	`BYTE`	`208`	Dell Revision and IDs indicator
`0x01`	2.2+	Length	`BYTE`	Varies	Length of the structure, `0x0C` according to the source
`0x02`	2.2+	Handle	`WORD`	Varies
`0x04`	2.2+	Dell Implementation, Major Revision	`BYTE`	`NUMBER`
`0x05`	2.2+	Dell Implementation, Minor Revision	`BYTE`	`NUMBER`
`0x06`	2.2+	Dell System ID	`BYTE`	`NUMBER`	A value of `0xFE` indicates that the actual system ID is stored in the system ID extension field.
`0x07`	2.2+	Dell Hardware Revision	`BYTE`	`NUMBER`
`0x08`	2.2+	Dell System ID Extension	`WORD`	`NUMBER`	The field is valid only when system ID field is set to `0xFE`.
`0x0A`	2.2+	Manufacture Date	`BYTE`	`STRING`
`0x0B`	2.2+	First Power-on Date	`BYTE`	`STRING`