Can USB host custom devices?

bobuhito said:

I am having problems using my phone as a USB host when connecting a Digispark:
My phone simply never detects the Digispark (anyone with a Digispark can test this
with the ArduinoDroid app, or with direct SDK programming). Digispark uses a
custom USB driver, not a catalog HID driver (for the record, USB HID keyboards do
work fine on my phone).

I'm told that the Digispark connects fine on other (non-EMUI non-Huawei) phones.

Can anyone confirm this, or better yet explain the problem? I suspect EMUI might
not open custom USB devices up for developer access...

Thanks for your help! I've been trying to debug this for weeks...and just giving up

Click to expand...

Click to collapse

bobuhito said:

Did your adapter use an HID protocol?
And, how would I run lsusb? I mean I could try to do something like "adb shell lsusb"
from the computer while the phone is both a slave to the computer and a host...I
wonder if maybe you are mistakenly thinking I'm having a problem connecting my
phone to a computer, but that is fine (Digispark to computer also works fine, the
problem is Digispark to phone).

Click to expand...

Click to collapse