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mik3y / usb-serial-for-android

Android USB host serial driver library for CDC, FTDI, Arduino and other devices.
MIT License
4.82k stars 1.58k forks source link

How to show all ports correctly? #458

Closed sintyasin closed 1 year ago

sintyasin commented 1 year ago

Hi mik3y,

I tried to connect USB serial with 8ports to my computer and it shows 8ports. But, when i connect it to your example apps "Serial USB Terminal", it only shows 3ports. How is that possible? Is there any solution or things i could try to fix this?

kai-morich commented 1 year ago

which kind of USB device are you using?

sintyasin commented 1 year ago

modem pool 4 port smartcom chipset wavecom Q24 like in this link below

https://shopee.co.id/modem-pool-4-port-smartcom-chipset-wavecom-Q24-i.70401353.18433788696?sp_atk=c5fd415e-e2f1-4501-a222-b537bcbbad67&xptdk=c5fd415e-e2f1-4501-a222-b537bcbbad67

kai-morich commented 1 year ago

Only FTDI,Prolific PL2303, Silabs CP210x, Qinheng CH340 and CDC/ACM devices are supported by this library. please provide specification of your device. does this device come with a dedicated Windows driver?

sintyasin commented 1 year ago

what if the device doesn't come with a dedicated windows driver? does it means, i can't use that device or is there any workaround for it?

kai-morich commented 1 year ago

if it does not come with a dedicated driver, it is uses a standard driver. if the standard driver is for one of the mentioned chips, it should also work with this library.

kai-morich commented 1 year ago

please post export from 'USB Device Info' app. The one from Alexandros Schillings. The other app with same name does not collect detaial

sintyasin commented 1 year ago

Hello, i tried to connect 2 devices to 'USB Device Info'. The first one which is working well with you library shows some info. But, the second one (which i have problems earlier) do not show anything, even after i update the DB and click refresh multiple times.

What does this mean? Is it possible that some devices just not compatible and can't be read by Android Serial Driver?