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WebUSB on Android Smartphone #79

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TedNIVAN opened this issue Nov 16, 2020 · 2 comments · May be fixed by #80
Open

WebUSB on Android Smartphone #79

TedNIVAN opened this issue Nov 16, 2020 · 2 comments · May be fixed by #80

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@TedNIVAN
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Hi there,

I have an app (link here) using webusb that works well on PC. I'm able to detect an Arduino board and connect to it.
However when I try to use the same app on an Android phone (Android version 10), I can detect the device but nothing happens when I click the connect button.

1. Do you guys know how to make a webusb app work on Android?
2. Maybe there are some permissions/settings to enable on the phone?

Kind regards,
@reillyeon
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Which board are you using? There's a known issue (sorry, I can't find the link right now) where SAMD boards don't respond to descriptor requests properly and that breaks connections on Android.

@TedNIVAN
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I'm using the Arduino NANO 33 IoT board which is indeed a SAMD board.

Any workaround?

reillyeon added a commit that referenced this issue Nov 17, 2020
@reillyeon
Fix control transfers on SAMD
d0994ad 
On SAMD-based boards it appears that the entire control transfer reply
needs to be passed to USB_SendControl() at once. The original code took
advantage of making multiple calls to construct replies from smaller
chunks. This has been rewritten to construct and send the entire
responce at once.

Fixes #79.
@reillyeon reillyeon linked a pull request Nov 17, 2020 that will close this issue
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Fix control transfers on SAMD webusb/arduino
2 participants
@reillyeon @TedNIVAN