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Added T2 and iPad data #2

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Added T2 and iPad data #2

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rickmark
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@rickmark rickmark commented Aug 6, 2021

This tool already works out of box with iPad and T2 targets since the VDMs are identical

marcan
marcan reviewed Aug 12, 2021
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README.md
@@ -15,17 +17,19 @@ This is based on portions of [ThunderboltPatcher](https://github.com/osy/Thunder

Thanks to t8012.dev and mrarm for assistance with the VDM and Ace2 host interface commands.

The documentation of the ACE and its USB-PD VPDs is here https://blog.t8012.dev/ace-part-1/
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VDPs?

README.md

You need to use a *USB 3.0 compatible* (SuperSpeed) Type C cable. USB 2.0-only cables, including most cables meant for charging, will not work, as they do not have the required pins. Thunderbolt cables work too.
You need to use a *USB 3.0 compatible* (SuperSpeed) Type C cable. USB 2.0-only cables, including most cables meant for charging, will not work, as they do not have the required pins (USB CC1/CC2 where USB-PD are transmitted). Thunderbolt cables work too.
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This is not correct; the missing pins are SBU1/SBU2, which we use for serial. USB 2.0 cables do work for USB-PD commands like reboot, just not for serial.

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Honestly its missing both... but neither here nor there (it only ends up connecting D+/D- SS1/2 and VCC / GND on a 2.0 cable)

@tihmstar
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Hi @marcan @rickmark,
I could successfully use this tool from my M1 mac to do: reboot, dfu and serial on my iPad8,1.
On T2 i could do: reboot and dfu, but serial doesn't work.

sudo macvdmtool serial
Mac type: J316cAP
Looking for HPM devices...
Found: IOService:/AppleARMPE/arm-io/AppleT600xIO/i2c0@9B040000/AppleS5L8940XI2CController/hpmBusManager@6B/AppleHPMBusController/hpm0/AppleHPMARMI2C
Connection: Source
Status: APP 
Unlocking... OK
Entering DBMa mode... Status: DBMa
Putting target into serial mode... VDM failed (reply: 0x05ac8092)
Exiting DBMa mode... OK
VDM failed

Any ideas?

On the same machine i can get serial from my iPad8,1.
Is it possible that serial VDM, is incorrect for T2?
How can the correct VMD be found?

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@rickmark @tihmstar @marcan