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From: | Gerd Hoffmann |
Subject: | Re: [Qemu-devel] [PATCH 2/3] usb: add public usb_device_by_id |
Date: | Tue, 19 Oct 2010 15:09:38 +0200 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100827 Red Hat/3.1.3-1.el6 Thunderbird/3.1.3 |
+USBDevice *usb_device_by_id(const char* id) +{ + USBBus *bus; + DeviceState *qdev; + USBDevice *dev; + + QTAILQ_FOREACH(bus,&busses, next) { + qdev = qdev_find_recursive(&bus->qbus, id); + if (qdev != NULL) { + dev = DO_UPCAST(USBDevice, qdev, qdev); + return dev; + } + }
You don't need qdev_find_recursive here. Have a look at the usb_info() code to see how to loop over all usb devices. Then compare id with USBDevice->qdev.id.
cheers, Gerd
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