Re: [LAU] Two exact same drumpads, different USB ID's

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To: <linux-audio-user@...>
Date: Sunday, March 3, 2013 - 3:13 pm

On Sun, 03 Mar 2013 13:26:21 +0100
Jeremy Jongepier wrote:

> Dear all,

I have no idea what chip it uses, but I have played a bit with Atmel
and ARM chips with built-in USB controllers. The way these work is that
the controller does the basic USB stuff in hardware, but the higher
level things, such as the USB class, are determined by the firmware. So
what you see might be a firmware bug. This sounds likely if that the
hardware is otherwise identical.

So maybe you could find a way to read out the firmware from the good
one, and flash it onto the bad one. Unfortunately, most such chips have
a code read lock bit set, so reading it may be impossible. Anyway, maybe
you could make photos of the PCB, and also see if you can decipher any
text on the chip, and post both? If we could get these to work, I might
buy one myself. For that price... :)

Is the working one otherwise okay? Are the pads pressure sensitive,
i.e. are notes played with different velocity depending depending on
how hard you hit it? (Guess not, but it would be cool)

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Messages in current thread:
[LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sun Mar 3, 12:26 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sat Mar 9, 8:41 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Gabriel Beddingfield, (Sat Mar 9, 9:08 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sat Mar 9, 9:21 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Clemens Ladisch, (Sun Mar 10, 11:33 am)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sun Mar 10, 2:36 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Clemens Ladisch, (Sun Mar 17, 4:20 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Mon Mar 18, 8:41 am)
Re: [LAU] Two exact same drumpads, different USB ID's, Ralf Mardorf, (Sat Mar 9, 9:51 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sat Mar 9, 8:35 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Peder Hedlund, (Mon Mar 4, 8:11 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Pedro Lopez-Cabanillas, (Sun Mar 10, 9:55 am)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sun Mar 3, 7:13 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Johannes Kroll, (Sun Mar 3, 3:32 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sun Mar 3, 7:08 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Johannes Kroll, (Sun Mar 3, 3:13 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sat Mar 9, 8:31 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sun Mar 3, 7:30 pm)
Re: [LAU] Two exact same drumpads, different USB ID's, Jeremy Jongepier, (Sun Mar 3, 7:07 pm)