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mik3y / usb-serial-for-android

Android USB host serial driver library for CDC, FTDI, Arduino and other devices.
MIT License
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ControlTransfer with value 0x8 failed:-1 #427

Closed dllhxll closed 2 years ago

dllhxll commented 2 years ago

Hi, I hava a problem, Hope the author can give the answer!

The demo usbSerialExamples show error : "ControlTransfer with value 0x8 failed:-1" when I connect to the serial port (TypC - RJ45)

Excecute code: usbSerialPort.open( connection ) Phone version : Vivo iQOO Z3 Android 11 and Oppo realme Q3 Android 11 The vendorId and productId : 067B, 23c3 OTG : I have opened the OTG mode

kai-morich commented 2 years ago

Are you using a Prolific PL2303GT? Is it working with Linux?

dllhxll commented 2 years ago

Yes, the serial line(TypeC - RS232) uses Prolific PL2303GT. And it is working with Linux (Android 11). I connect to the Switch such like this : Phone(TypeC) <------> serial lineA (TypeC - RS232, using Prolific PL2303GT) <------> serial lineB (RS232 - RJ45) <------> Switch(RJ45) And the serial lineB (RS232 - RJ45) can work well when I connect PC(RS232) and Switch(RJ45) by using it.

kai-morich commented 2 years ago

looks like you use an older version of the library, as the message "ControlTransfer with value ..." has slightly changed in recent versions. Please upgrade as PL2303GT support was added with v3.4.0

dllhxll commented 2 years ago

The version that I use is v3.4.3.

kai-morich commented 2 years ago

I have a working PL2303GC, but looks like your PL2303GT is not correctly detected. Distinguishing classic PL2303 and PL2303G* looks tricky, as also the Linux kernel has ongoing work there.

Please post the rawDescriptor value used here: https://github.com/mik3y/usb-serial-for-android/blob/cf9bada887479a11a2de3e62102c81f3904b4e97/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/ProlificSerialDriver.java#L293

kai-morich commented 2 years ago

please post log output created with latest version https://github.com/mik3y/usb-serial-for-android/commit/f997a8b68ab5a53ad4cd34ec1ef44ab609dcc020

dllhxll commented 2 years ago

I'm so sorry I only replied now. I used other serial line to avoid this problem.

I will post the log output created with rawDescriptor after I borrow the PL2303GT serial line

Thank you!

kai-morich commented 2 years ago

duplicate to #439