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From: Bastien Nocera <hadess@hadess.net>
To: linux-usb@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Benjamin Tissoires <benjamin.tissoires@redhat.com>
Subject: [PATCH 3/5] USB: Implement usb_device_match_id()
Date: Wed,  9 Oct 2019 15:43:40 +0200	[thread overview]
Message-ID: <20191009134342.6476-4-hadess@hadess.net> (raw)
In-Reply-To: <20191009134342.6476-1-hadess@hadess.net>

Match a usb_device with a table of IDs.

Signed-off-by: Bastien Nocera <hadess@hadess.net>
---
 drivers/usb/core/driver.c | 15 +++++++++++++++
 include/linux/usb.h       |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 863e380a272b..50f92da8afcf 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -800,6 +800,21 @@ const struct usb_device_id *usb_match_id(struct usb_interface *interface,
 }
 EXPORT_SYMBOL_GPL(usb_match_id);
 
+const struct usb_device_id *usb_device_match_id(struct usb_device *udev,
+				const struct usb_device_id *id)
+{
+	if (!id)
+		return NULL;
+
+	for (; id->idVendor || id->idProduct ; id++) {
+		if (usb_match_device(udev, id))
+			return id;
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(usb_device_match_id);
+
 static int usb_device_match(struct device *dev, struct device_driver *drv)
 {
 	/* devices and interfaces are handled separately */
diff --git a/include/linux/usb.h b/include/linux/usb.h
index fb9ad3511e55..66bd4344e298 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -864,6 +864,8 @@ const struct usb_device_id *usb_match_id(struct usb_interface *interface,
 					 const struct usb_device_id *id);
 extern int usb_match_one_id(struct usb_interface *interface,
 			    const struct usb_device_id *id);
+const struct usb_device_id *usb_device_match_id(struct usb_device *udev,
+				const struct usb_device_id *id);
 
 extern int usb_for_each_dev(void *data, int (*fn)(struct usb_device *, void *));
 extern struct usb_interface *usb_find_interface(struct usb_driver *drv,
-- 
2.21.0


  parent reply	other threads:[~2019-10-09 13:43 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-09 13:43 [PATCH 0/5] Add Apple MFi fastcharge USB device driver Bastien Nocera
2019-10-09 13:43 ` [PATCH 1/5] USB: Export generic USB device driver functions Bastien Nocera
2019-10-09 13:43 ` [PATCH 2/5] USB: Make it possible to "subclass" usb_device_driver Bastien Nocera
2019-10-09 14:34   ` Alan Stern
2019-10-09 14:41     ` Alan Stern
2019-10-10  8:10     ` Bastien Nocera
2019-10-10  9:58   ` kbuild test robot
2019-10-09 13:43 ` Bastien Nocera [this message]
2019-10-09 14:36   ` [PATCH 3/5] USB: Implement usb_device_match_id() Alan Stern
2019-10-09 15:40     ` Bastien Nocera
2019-10-09 17:29       ` Alan Stern
2019-10-09 13:43 ` [PATCH 4/5] USB: Select better matching USB drivers when available Bastien Nocera
2019-10-09 14:43   ` Alan Stern
2019-10-09 15:35     ` Bastien Nocera
2019-10-09 17:28       ` Alan Stern
2019-10-09 18:24         ` Bastien Nocera
2019-10-09 18:45           ` Alan Stern
2019-10-10  8:26             ` Bastien Nocera
2019-10-10 14:19               ` Alan Stern
2019-10-10 10:33   ` kbuild test robot
2019-10-09 13:43 ` [PATCH 5/5] USB: Add driver to control USB fast charge for iOS devices Bastien Nocera

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