[BRLTTY] Latest humanware/APH devices and brltty on Android

[henk.abma at gmail.com]

Hello Dave,

-----Oorspronkelijk bericht-----
Van: BRLTTY <brltty-bounces at brltty.app> Namens Dave Mielke
Verzonden: zondag 31 oktober 2021 20:11
Aan: Informal discussion between users and developers of BRLTTY.
<brltty at brltty.app>
Onderwerp: Re: [BRLTTY] Latest humanware/APH devices and brltty on Android


Do you have a Linux system to see if brltty recognizes it there?

Currently I only run Linux in WSL (Windows System for Linux) and I'm not
sure if I can assign a USB port to that.



What are the vendor and product identifiers of the Mantis?

Below is the handshake when the Mantis is connected. I think the information
you ask is in the first line:
==== cut here ====
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager: Added device
UsbDevice[mName=/dev/bus/usb/001/002,mVendorId=7281,mProductId=49425,mClass=
0,mSubclass=0,mProtocol=0,mManufacturerName=,mProductName=APH Mantis
Q40,mVersion=4.14,mSerialNumberReader=com.android.server.usb.UsbSerialReader
@2b847ea, mHasAudioPlayback=false, mHasAudioCapture=false, mHasMidi=false,
mHasVideoCapture=false, mHasVideoPlayback=false, mConfigurations=[
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbConfiguration[mId=1,mName=,mAttributes=128,mMaxPower=1,mInterfaces=[
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbInterface[mId=0,mAlternateSetting=0,mName=HID
Interface,mClass=3,mSubclass=0,mProtocol=0,mEndpoints=[
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbEndpoint[mAddress=129,mAttributes=3,mMaxPacketSize=8,mInterval=4]
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbEndpoint[mAddress=2,mAttributes=3,mMaxPacketSize=8,mInterval=4]]
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbInterface[mId=1,mAlternateSetting=0,mName=HID
Interface,mClass=3,mSubclass=0,mProtocol=0,mEndpoints=[
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbEndpoint[mAddress=131,mAttributes=3,mMaxPacketSize=8,mInterval=4]
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbEndpoint[mAddress=4,mAttributes=3,mMaxPacketSize=8,mInterval=4]]
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbInterface[mId=2,mAlternateSetting=0,mName=HID
Interface,mClass=3,mSubclass=1,mProtocol=1,mEndpoints=[
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbEndpoint[mAddress=133,mAttributes=3,mMaxPacketSize=8,mInterval=4]
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbEndpoint[mAddress=6,mAttributes=3,mMaxPacketSize=8,mInterval=4]]
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbInterface[mId=3,mAlternateSetting=0,mName=MTP,mClass=6,mSubclass=1,mProto
col=1,mEndpoints=[
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbEndpoint[mAddress=135,mAttributes=2,mMaxPacketSize=512,mInterval=0]
10-30 18:37:10.716  1000  1661  2128 D UsbHostManager:
UsbEndpoint[mAddress=8,mAttributes=2,mMaxPacketSize=512,mInterval=0]
==== cut here ====

>I assume brltty is still missing something that makes Android aware of 
>the fact that brltty is a potential USB user.

I'm still wondering if you might need an OTG cable. Maybe not - and even
theoretically not - but, when things don't work as expected, I wonder
everything.

I've been googling for a USB-C OTG cable, but can't find anything that makes
sense to me.

I'll try the USB connection with a focus display that has USB C as well, to
see what happens there. First results weren't that good, since Android
announced the Focus as an unknown audio device.....

With kind regards,

Henk.


--
I believe the Bible to be the very Word of God: http://Mielke.cc/bible/
Dave Mielke            | 2213 Fox Crescent | WebHome: http://Mielke.cc/
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