input/tablet/kbtab.c

22 struct kbtab {
33 	struct kbtab *kbtab = urb->context;
34 	unsigned char *data = kbtab->data;
35 	struct input_dev *dev = kbtab->dev;
47 		dev_dbg(&kbtab->intf->dev,
52 		dev_dbg(&kbtab->intf->dev,
78 		dev_err(&kbtab->intf->dev,
92 	struct kbtab *kbtab = input_get_drvdata(dev);
93 	struct usb_device *udev = interface_to_usbdev(kbtab->intf);
95 	kbtab->irq->dev = udev;
96 	if (usb_submit_urb(kbtab->irq, GFP_KERNEL))
104 	struct kbtab *kbtab = input_get_drvdata(dev);
106 	usb_kill_urb(kbtab->irq);
113 	struct kbtab *kbtab;
124 	kbtab = kzalloc(sizeof(*kbtab), GFP_KERNEL);
126 	if (!kbtab || !input_dev)
129 	kbtab->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &kbtab->data_dma);
130 	if (!kbtab->data)
133 	kbtab->irq = usb_alloc_urb(0, GFP_KERNEL);
134 	if (!kbtab->irq)
137 	kbtab->intf = intf;
138 	kbtab->dev = input_dev;
140 	usb_make_path(dev, kbtab->phys, sizeof(kbtab->phys));
141 	strlcat(kbtab->phys, "/input0", sizeof(kbtab->phys));
144 	input_dev->phys = kbtab->phys;
148 	input_set_drvdata(input_dev, kbtab);
162 	usb_fill_int_urb(kbtab->irq, dev,
164 			 kbtab->data, 8,
165 			 kbtab_irq, kbtab, endpoint->bInterval);
166 	kbtab->irq->transfer_dma = kbtab->data_dma;
167 	kbtab->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
169 	error = input_register_device(kbtab->dev);
173 	usb_set_intfdata(intf, kbtab);
177  fail3:	usb_free_urb(kbtab->irq);
178  fail2:	usb_free_coherent(dev, 8, kbtab->data, kbtab->data_dma);
180 	kfree(kbtab);
186 	struct kbtab *kbtab = usb_get_intfdata(intf);
191 	input_unregister_device(kbtab->dev);
192 	usb_free_urb(kbtab->irq);
193 	usb_free_coherent(udev, 8, kbtab->data, kbtab->data_dma);
194 	kfree(kbtab);
198 	.name =		"kbtab",