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Date:	Tue, 22 May 2012 01:32:05 +0000
From:	"Du, ChangbinX" <changbinx.du@...el.com>
To:	"'gregkh@...uxfoundation.org'" <gregkh@...uxfoundation.org>
CC:	'Sergei Shtylyov' <sshtylyov@...sta.com>,
	"'mina86@...a86.com'" <mina86@...a86.com>,
	"Fleming, Matt" <matt.fleming@...el.com>,
	"'balbi@...com'" <balbi@...com>, "'hpa@...or.com'" <hpa@...or.com>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
	"'linux-usb@...r.kernel.org'" <linux-usb@...r.kernel.org>
Subject: [Resend PATCH v2] testusb: add path /dev/bus/usb to default search
 paths of usbfs

As real device-nodes managed by udev whose nodes lived in /dev/bus/usb are mostly used today, let testusb tool use that directory as one default path make tool be more convenient to use.

Signed-off-by: Du Changbin <changbinx.du@...el.com>
---
 tools/usb/testusb.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/usb/testusb.c b/tools/usb/testusb.c index 6e0f567..82d7c59 100644
--- a/tools/usb/testusb.c
+++ b/tools/usb/testusb.c
@@ -358,6 +358,7 @@ static const char *usbfs_dir_find(void)  {
 	static char usbfs_path_0[] = "/dev/usb/devices";
 	static char usbfs_path_1[] = "/proc/bus/usb/devices";
+	static char udev_usb_path[] = "/dev/bus/usb";
 
 	static char *const usbfs_paths[] = {
 		usbfs_path_0, usbfs_path_1
@@ -376,6 +377,10 @@ static const char *usbfs_dir_find(void)
 		}
 	} while (++it != end);
 
+	/* real device-nodes managed by udev */
+	if (access(udev_usb_path, F_OK) == 0)
+		return udev_usb_path;
+
 	return NULL;
 }
 
--
1.7.9.5

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