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Message-ID: <Pine.LNX.4.64.0812291119120.9555@pc-004.diku.dk>
Date: Mon, 29 Dec 2008 11:19:32 +0100 (CET)
From: Julia Lawall <julia@...u.dk>
To: dmitry.torokhov@...il.com, dtor@...l.ru,
linux-input@...r.kernel.org, gregkh@...e.de,
linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH 2/13] drivers/input/tablet: use USB API functions rather than
constants
From: Julia Lawall <julia@...u.dk>
This set of patches introduces calls to the following set of functions:
usb_endpoint_dir_in(epd)
usb_endpoint_dir_out(epd)
usb_endpoint_is_bulk_in(epd)
usb_endpoint_is_bulk_out(epd)
usb_endpoint_is_int_in(epd)
usb_endpoint_is_int_out(epd)
usb_endpoint_num(epd)
usb_endpoint_type(epd)
usb_endpoint_xfer_bulk(epd)
usb_endpoint_xfer_control(epd)
usb_endpoint_xfer_int(epd)
usb_endpoint_xfer_isoc(epd)
In some cases, introducing one of these functions is not possible, and it
just replaces an explicit integer value by one of the following constants:
USB_ENDPOINT_XFER_BULK
USB_ENDPOINT_XFER_CONTROL
USB_ENDPOINT_XFER_INT
USB_ENDPOINT_XFER_ISOC
An extract of the semantic patch that makes these changes is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r1@ struct usb_endpoint_descriptor *epd; @@
- ((epd->bmAttributes & \(USB_ENDPOINT_XFERTYPE_MASK\|3\)) ==
- \(USB_ENDPOINT_XFER_CONTROL\|0\))
+ usb_endpoint_xfer_control(epd)
@r5@ struct usb_endpoint_descriptor *epd; @@
- ((epd->bEndpointAddress & \(USB_ENDPOINT_DIR_MASK\|0x80\)) ==
- \(USB_DIR_IN\|0x80\))
+ usb_endpoint_dir_in(epd)
@inc@
@@
#include <linux/usb.h>
@depends on !inc && (r1||r5)@
@@
+ #include <linux/usb.h>
#include <linux/usb/...>
// </smpl>
Signed-off-by: Julia Lawall <julia@...u.dk>
---
drivers/input/tablet/gtco.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
index 5524e01..2e18a1c 100644
--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -877,7 +877,7 @@ static int gtco_probe(struct usb_interface *usbinterface,
dbg("num endpoints: %d", usbinterface->cur_altsetting->desc.bNumEndpoints);
dbg("interface class: %d", usbinterface->cur_altsetting->desc.bInterfaceClass);
dbg("endpoint: attribute:0x%x type:0x%x", endpoint->bmAttributes, endpoint->bDescriptorType);
- if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT)
+ if (usb_endpoint_xfer_int(endpoint))
dbg("endpoint: we have interrupt endpoint\n");
dbg("endpoint extra len:%d ", usbinterface->altsetting[0].extralen);
--
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