Re: other_speed_configuration string

[Tim R. <ti...@pr...>]

Walker, Richard wrote:
> I'm working on bringing up a new USB device that overloaded the OTHER_SPEED_CONFIGURATION
> string to output debugging information about the internal state of one of the ICs.

OTHER_SPEED_CONFIGURATION is not a string.  It's a descriptor.  The
terminology is important.
 

> I've been trying to write a small executable that will find and print out the ASCII value of the OTHER_SPEED_CONFIGURATION string.  Is this possible with libusb?  I've been able to print
> out manufacturers ID, serial number, and so forth, but can't figure out how to get descriptor #7.

Are you fetching descriptor type 7, or are you fetching string (type 3)
descriptor number 7?  Those are two different things.  Rather than
subvert the meaning of the actual OTHER_SPEED_CONFIGURATION descriptor
(which might accidentally get used if there were a bus problem), it
might be easier just to add another string descriptor for this.  You can
have as many string descriptors as you want

-- 
Tim Roberts, ti...@pr...
Providenza & Boekelheide, Inc.