undefined | Better HN

0 pointszkms8y ago0 comments

> The GP is simply wrong on many/most of its technical claims

I concur. Also regarding: ACPI, there often is an auxiliary microcontroller used to do power management and keyboard interfacing called "embedded controller" (sometimes there's also a mysterious ASIC, part numbers for them include Rohm BU77700KVT Toshiba TB62D515FG,TB62501F) that lives on some SMBus and with which the ACPI implementation, running on the main processor, talks with.

0 comments

1 comments · 1 top-level

TD-Linux8y ago

On newer Thinkpads, the firmware for the EC is on the same SPI Flash as the ME firmware, but on a different partition. The EC is an entirely separate chip (labeled ThinkEngine) and by virtue of being only on SMBus is a lot less dangerous.

j / k navigate · click thread line to collapse