Two devices in the 3B+ IoT image's DSDT missing from the ACPI tables

[Googulator]

The Pi 3 B+ IoT insider image contains the following 2 devices in its DSDT table:

   Device (DSEN)
    {
        Name (_HID, "DSN3832")  // _HID: Hardware ID
        Name (_CID, "ACPIDSN3832")  // _CID: Compatible ID
        Name (_UID, Zero)  // _UID: Unique ID
        Method (_STA, 0, NotSerialized)  // _STA: Status
        {
            Return (0x0F)
        }
    }

    Device (FT54)
    {
        Name (_HID, "FTSC5406")  // _HID: Hardware ID
        Name (_CID, "FTSC5406")  // _CID: Compatible ID
        Name (_UID, Zero)  // _UID: Unique ID
        Name (_DEP, Package (0x01)  // _DEP: Dependencies
        {
            "\\_SB.RPIQ"
        })
        Method (_STA, 0, NotSerialized)  // _STA: Status
        {
            Return (0x0F)
        }

        Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
        {
            Name (RBUF, ResourceTemplate ()
            {
                Memory32Fixed (ReadOnly,
                    0x3E40A860,         // Address Base
                    0x00000040,         // Address Length
                    )
            })
            Return (RBUF)
        }
    }

No idea what these actually are. They aren't found in any form in our ACPI tables.

[Googulator]

FTSC5406 is apparently the touchscreen digitizer part of the official Pi display.

[Googulator]

DSN3832 is "BootVolumeSentinel Device", whatever that means

[andreiw]

I could add them, sure. Don’t know what the sentinel device is about.

A

9 окт. 2018 г., в 16:56, Googulator notifications@github.com написал(а):

DSN3832 is "BootVolumeSentinel Device", whatever that means

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[stefan2225]

It's probably something Windows 10 specific, only found it mentioned with Windows 10 and PCIE together on some kind of lists with drivers on google and everywhere else

[driver1998]

Are these even used by Windows? The 3B image has these devices as well, but Windows doesn’t even have drivers for them.

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发件人: Googulator notifications@github.com 发送时间: Wednesday, October 10, 2018 4:56:51 AM 收件人: andreiw/RaspberryPiPkg 抄送: Subscribed 主题: Re: [andreiw/RaspberryPiPkg] Two devices in the 3B+ IoT image's DSDT missing from the ACPI tables (#85)

DSN3832 is "BootVolumeSentinel Device", whatever that means

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[andreiw]

It could be related to an evolution of the crazy way the GPT partition table followed the boot FAT partition for MS-IoT. Or not.

It’s not immediately obvious what adding these adds, because we’re not talking about a hw device.

At the moment, not considering adding these anymore.

A

11 окт. 2018 г., в 1:10, driver1998 notifications@github.com написал(а):

Is these even used by Windows? The 3B image has these devices as well, but Windows doesn’t even have drivers for them.

发送自 Windows 10 版邮件https://go.microsoft.com/fwlink/?LinkId=550986应用

---

发件人: Googulator notifications@github.com 发送时间: Wednesday, October 10, 2018 4:56:51 AM 收件人: andreiw/RaspberryPiPkg 抄送: Subscribed 主题: Re: [andreiw/RaspberryPiPkg] Two devices in the 3B+ IoT image's DSDT missing from the ACPI tables (#85)

DSN3832 is "BootVolumeSentinel Device", whatever that means

― You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHubhttps://github.com/andreiw/RaspberryPiPkg/issues/85#issuecomment-428348964, or mute the threadhttps://github.com/notifications/unsubscribe-auth/AVpd3Tz6Q8ZoBLhdPsr0xXB3BWsHk-eWks5ujQ2TgaJpZM4XUGCo. — You are receiving this because you commented. Reply to this email directly, view it on GitHub, or mute the thread.