Re: dmi info requested... - Dell - Precision WorkStation 690

[Len Brown <lenb@kernel.org>]

Thanks for the acpidump.

It looks a lot like the Dell Precision M4300, but slightly simpler.

ISLI returns 1 for OSI(Linux). 0 for everything else.
GUSB is the only invocation of ISLI.

GUSB is invoked only on USB _INI, and on wakeup from hibernate.

So... If you notice any difference in USB function either
upon boot or resume from hibernate when using acpi_osi=Linux,
please let let us know.

thanks,
-Len


        Method (ISLI, 0, NotSerialized)
        {
            If (CondRefOf (_OSI, Local0))
            {
                If (_OSI ("Linux"))
                {
                    Return (One)
                }
                Else
                {
                    Return (Zero)
                }
            }
            Else
            {
                Return (Zero)
            }
        }
...
    Method (GUSB, 0, NotSerialized)
    {
        If (ISLI ())
        {
            Return (Zero)
# OSI(Linux)
        }
        Else
        {
# else
            Return (SMI2 (0xBA))
        }
    }