• Alan Stern's avatar
    USB: add ep->enable · bdd016ba
    Alan Stern authored
    This patch (as944) adds an explicit "enabled" field to the
    usb_host_endpoint structure and uses it in place of the current
    mechanism.  This is merely a time-space tradeoff; it makes checking
    whether URBs may be submitted to an endpoint simpler.  The existing
    mechanism is efficient when converting urb->pipe to an endpoint
    pointer, but it's not so efficient when urb->ep is used instead.
    As a side effect, the procedure for enabling an endpoint is now a
    little more complicated.  The ad-hoc inline code in usb.c and hub.c
    for enabling ep0 is now replaced with calls to usb_enable_endpoint,
    which is no longer static.
    Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
hub.c 84.1 KB