From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Tue, 3 Mar 2015 09:52:25 +0000 (+0100)
Subject: usb: gadget: printer: add req_match for printer function
X-Git-Tag: omap-for-v4.1/fixes-rc1~167^2~55^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=636bc0ed271d996e18365345e9c00fc712edc610;p=pandora-kernel.git

usb: gadget: printer: add req_match for printer function

Verify that a given usb_ctrlrequest is meant for printer function.
The following parts of the request are tested:

- bmRequestType:Data transfer direction
- bmRequestType:Type
- bmRequestType:Recipient
- bRequest
- wValue for bRequest 1 and 2
- wLength

Additionally, the request is considered meant for this function
iff the decoded interface number matches dev->interface.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

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