On 1 May 2012 at 19:52, Tony Duell wrote:
Is there no equivalent of a 'service
request' in USB? (I;ve not read
the stnadard seriously)?
Not as far as I've read the standard. "Speak only when spoken to"
I see... And I though USB was supposed to be an improvement on what had
gone before...
I cna think of plenty of tiems when it is reasonable for the 'master' to
control everything and to have to poll devices, equally I can think fo
times when it isn't. And a so-called 'universal' interface should handle
all possibilities.
-tony