USB Keyboard with internal hub not recongnized as keyboard, just hub.

[chrisniael]

Arduino Uno
Usb Host Shield v2
Keyboard: HHKB Professional 2 Type-S

I want to transfer usb keyboard to ps/2, I run USBHIDBootKbd.ino to read usb keyboard input, but fail.

Start
BM Init
Addr:01
NC:01
HID_PROTOCOL_KEYBOARD
bNumEP:01
D1

Then I run USB_desc.ino, the output device class, device subclass, device protocol is 09, 00, 00, I think this means the device is a HUB.

Start

01
--

Device descriptor: 
Descriptor Length:	12
Descriptor type:	01
USB version:		0200
Device class:		09
Device Subclass:	00
Device Protocol:	00
Max.packet size:	40
Vendor  ID:		0409
Product ID:		005A
Revision ID:		0100
Mfg.string index:	00
Prod.string index:	00
Serial number index:	00
Number of conf.:	01

Configuration descriptor:
Total length:		0019
Num.intf:		01
Conf.value:		01
Conf.string:		00
Attr.:			E0
Max.pwr:		32

Interface descriptor:
Intf.number:		00
Alt.:			00
Endpoints:		01
Intf. Class:		09
Intf. Subclass:		00
Intf. Protocol:		00
Intf.string:		00

Endpoint descriptor:
Endpoint address:	81
Attr.:			03
Max.pkt size:		0001
Polling interval:	FF

Addr:1(0.0.1)

Does that means Usb Host Shield not support keyboard with internal hub?

[haakonnessjoen]

Did you ever figure out this? I am having the same problems

[tmk]

Uncomment the line?
https://github.com/felis/USB_Host_Shield_2.0/blob/master/examples/HID/USBHIDBootKbd/USBHIDBootKbd.ino#L100

[chrisniael]

@haakonnessjoen, Not yet.
@tmk, Uncomment this line not work. And I think the line you suggest to uncomment means making Arduino works when a hub device connects to Arduino(Not a keyboard with internal hub).

[tmk]

@chrisniael Did you try it actually?
I confirmed USBHIDBootKbd.ino read keys from my PD-KB400 with the line, and can't read without the line.
You need the line to support hub.

Start 
GPS GPS GPS GPS GPS GPS oT GPS GPS GPS DN      >2C<
ASCII:
UP      >2C<
DN      >2C<
ASCII:
UP      >2C<
DN      >2C<
ASCII:
UP      >2C<
DN      >2C<
ASCII:
UP      >2C<
DN      >2C<
ASCII:
UP      >2C<

[chrisniael]

@tmk sorry for the late reply.
Just ran it again, the same result.
My keyboard is PD-KB400WS.

[tmk]

I think you failed to change the line and build firmware for some reason. Take your time to make sure your build process.

Without USBHub USBHIDBootKbd.ino fails with 'D1' as your open post shows because it sees the internal hub as keyboard.

[chrisniael]

Without USBHub USBHIDBootKbd.ino fails with 'D1' as your open post shows because it sees the internal hub as keyboard.

I agree with you on this point.

And I found an interesting thing.
Code: USBHIDBootKbd.ino with USBHub
When I connect another keyboard to the USB hub inside the PD-KB400WS, the keyboard can be recognized by the Arduino as a keyboard, and the keyboard input can be read normally.