Re: Is libusb dead?

Greg KH <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
On Tue, Apr 24, 2007 at 01:24:02AM +0200, Oliver Neukum wrote:
> Am Dienstag, 24. April 2007 00:35 schrieb Greg KH:
> > > This suggests that usbfs2 should have special "interface" files as well as 
> > > a special "device" file and "endpoint" files.
> > 
> > Nah, I don't think that will be needed.
> 
> 1. Interfaces have properties, namely the setting

Yes, which we should be able to control through the control endpoint
with an ioctl, right?

> 2. We cannot operate solely at the level of the endpoint
> We must know which requests are affected when an interface
> is affected, eg. reset cannot restore the altsetting. This cannot work
> at the endpoint level because endpoint 0 is shared. We cannot drop
> claiming an interface as is done in the current usbfs.

Once you open an endpoint that is not endpoint 0 that would signify that
the interface is then "claimed" as far as the kernel goes, right?

thanks,

greg k-h

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