Re: [PATCH 2/2] [RFC] pl2303 autosuspend

Alan Stern <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
On Wed, 14 Nov 2007, Oliver Neukum wrote:

> > handle suspend correctly.  The HX chip can handle suspend gracefully,
> > but the type_1 can't.  When it resumes, the host controller detects it
> > as a low speed device; since it's actually a high speed device, this
> > fails.  The initialization for the two chips are different (see the
> > FISH/SOUP mess in pl2303.c), but I haven't experimented to see if
> > different initialization would help.
> 
> By then it would be too late. IMHO the failing devices need reset_resume()
> and a quirk entry.

And reset_resume() should do a hangup call if a connection was open at 
the time.

Alan Stern


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