[PATCH] drivers/usb/input: convert to dynamic input_dev allocation
Input: convert drivers/iusb/input to dynamic input_dev allocation
This is required for input_dev sysfs integration
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/input/kbtab.c b/drivers/usb/input/kbtab.c
index b6f6ac8..a248664 100644
--- a/drivers/usb/input/kbtab.c
+++ b/drivers/usb/input/kbtab.c
@@ -34,7 +34,7 @@
struct kbtab {
signed char *data;
dma_addr_t data_dma;
- struct input_dev dev;
+ struct input_dev *dev;
struct usb_device *usbdev;
struct urb *irq;
int x, y;
@@ -48,7 +48,7 @@
{
struct kbtab *kbtab = urb->context;
unsigned char *data = kbtab->data;
- struct input_dev *dev = &kbtab->dev;
+ struct input_dev *dev = kbtab->dev;
int retval;
switch (urb->status) {
@@ -124,53 +124,43 @@
struct usb_device *dev = interface_to_usbdev(intf);
struct usb_endpoint_descriptor *endpoint;
struct kbtab *kbtab;
- char path[64];
+ struct input_dev *input_dev;
- if (!(kbtab = kmalloc(sizeof(struct kbtab), GFP_KERNEL)))
- return -ENOMEM;
- memset(kbtab, 0, sizeof(struct kbtab));
+ kbtab = kzalloc(sizeof(struct kbtab), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!kbtab || !input_dev)
+ goto fail1;
kbtab->data = usb_buffer_alloc(dev, 8, GFP_KERNEL, &kbtab->data_dma);
- if (!kbtab->data) {
- kfree(kbtab);
- return -ENOMEM;
- }
+ if (!kbtab->data)
+ goto fail1;
kbtab->irq = usb_alloc_urb(0, GFP_KERNEL);
- if (!kbtab->irq) {
- usb_buffer_free(dev, 10, kbtab->data, kbtab->data_dma);
- kfree(kbtab);
- return -ENOMEM;
- }
+ if (!kbtab->irq)
+ goto fail2;
- kbtab->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_MSC);
- kbtab->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
-
- kbtab->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
-
- kbtab->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH);
-
- kbtab->dev.mscbit[0] |= BIT(MSC_SERIAL);
-
- kbtab->dev.absmax[ABS_X] = 0x2000;
- kbtab->dev.absmax[ABS_Y] = 0x1750;
- kbtab->dev.absmax[ABS_PRESSURE] = 0xff;
-
- kbtab->dev.absfuzz[ABS_X] = 4;
- kbtab->dev.absfuzz[ABS_Y] = 4;
-
- kbtab->dev.private = kbtab;
- kbtab->dev.open = kbtab_open;
- kbtab->dev.close = kbtab_close;
-
- usb_make_path(dev, path, 64);
- sprintf(kbtab->phys, "%s/input0", path);
-
- kbtab->dev.name = "KB Gear Tablet";
- kbtab->dev.phys = kbtab->phys;
- usb_to_input_id(dev, &kbtab->dev.id);
- kbtab->dev.dev = &intf->dev;
kbtab->usbdev = dev;
+ kbtab->dev = input_dev;
+
+ usb_make_path(dev, kbtab->phys, sizeof(kbtab->phys));
+ strlcat(kbtab->phys, "/input0", sizeof(kbtab->phys));
+
+ input_dev->name = "KB Gear Tablet";
+ input_dev->phys = kbtab->phys;
+ usb_to_input_id(dev, &input_dev->id);
+ input_dev->cdev.dev = &intf->dev;
+ input_dev->private = kbtab;
+
+ input_dev->open = kbtab_open;
+ input_dev->close = kbtab_close;
+
+ input_dev->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_MSC);
+ input_dev->keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
+ input_dev->keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH);
+ input_dev->mscbit[0] |= BIT(MSC_SERIAL);
+ input_set_abs_params(input_dev, ABS_X, 0, 0x2000, 4, 0);
+ input_set_abs_params(input_dev, ABS_X, 0, 0x1750, 4, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 0xff, 0, 0);
endpoint = &intf->cur_altsetting->endpoint[0].desc;
@@ -181,23 +171,25 @@
kbtab->irq->transfer_dma = kbtab->data_dma;
kbtab->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
- input_register_device(&kbtab->dev);
-
- printk(KERN_INFO "input: KB Gear Tablet on %s\n", path);
+ input_register_device(kbtab->dev);
usb_set_intfdata(intf, kbtab);
-
return 0;
+
+fail2: usb_buffer_free(dev, 10, kbtab->data, kbtab->data_dma);
+fail1: input_free_device(input_dev);
+ kfree(kbtab);
+ return -ENOMEM;
}
static void kbtab_disconnect(struct usb_interface *intf)
{
- struct kbtab *kbtab = usb_get_intfdata (intf);
+ struct kbtab *kbtab = usb_get_intfdata(intf);
usb_set_intfdata(intf, NULL);
if (kbtab) {
usb_kill_urb(kbtab->irq);
- input_unregister_device(&kbtab->dev);
+ input_unregister_device(kbtab->dev);
usb_free_urb(kbtab->irq);
usb_buffer_free(interface_to_usbdev(intf), 10, kbtab->data, kbtab->data_dma);
kfree(kbtab);