fobnail / usbd-ethernet

fobnail

Usage

TBD

Development

pre-commit hooks

• Make sure you have Fobnail SDK v0.2.5 or later.

• Install hooks using pre-commit.sh script.

./pre-commit.sh install

• Enjoy automatic checks on each git commit action!

• (Optional) Run hooks on all files (for example, when adding new hooks or configuring existing ones):

./pre-commit.sh run --all-files

TPM root CAs

tpm_ek_roots directory contains TPM root CAs which are required to verify whether EK certificate comes from a TPM (and to complete platform provisioning process). All certificates were downloaded from Microsoft (downloaded in May 2022).

Only root certificates are installed (without intermediate), and only those with RSA (Fobnail currently supports no other algorithms). All certificates were converted from DER into PEM form.

usbd-ethernet's Issues

Does not work with Windows 10

Driver is not working with Windows 10 - enumeration works, EEM driver is bound to USB device, but then fails initialization.

Driver does not work when plugged into USB 2.0

As in description driver does not work when plugged into USB 2.0 port, when plugged into USB 3.0 port it works fine.

This is the relevant dump from dmesg

[ 3407.854535] usb 1-1.3: new full-speed USB device number 33 using ehci-pci
[ 3413.049856] usb 1-1.3: unable to get BOS descriptor or descriptor too short
[ 3418.169816] usb 1-1.3: unable to read config index 0 descriptor/all
[ 3418.169829] usb 1-1.3: can't read configurations, error -110
[ 3418.254524] usb 1-1.3: new full-speed USB device number 34 using ehci-pci
[ 3423.545786] usb 1-1.3: unable to get BOS descriptor or descriptor too short
[ 3428.665730] usb 1-1.3: unable to read config index 0 descriptor/all
[ 3428.665743] usb 1-1.3: can't read configurations, error -110
[ 3428.670490] usb 1-1-port3: attempt power cycle
[ 3429.274476] usb 1-1.3: new full-speed USB device number 35 using ehci-pci
[ 3434.553710] usb 1-1.3: device descriptor read/all, error -110
[ 3434.638467] usb 1-1.3: new full-speed USB device number 36 using ehci-pci
[ 3439.929695] usb 1-1.3: device descriptor read/all, error -110
[ 3439.934443] usb 1-1-port3: unable to enumerate USB device