USB: add a private-data pointer to struct usb_tt
For improved scheduling of transfers through a Transaction Translator, ehci-hcd will need to store a bunch of information associated with the FS/LS bus on the downstream side of the TT. This patch adds a pointer for such HCD-private data to the usb_tt structure. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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