[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/itmtouch.c b/drivers/usb/input/itmtouch.c
index becb87e..3b58185 100644
--- a/drivers/usb/input/itmtouch.c
+++ b/drivers/usb/input/itmtouch.c
@@ -73,7 +73,7 @@
struct itmtouch_dev {
struct usb_device *usbdev; /* usb device */
- struct input_dev inputdev; /* input device */
+ struct input_dev *inputdev; /* input device */
struct urb *readurb; /* urb */
char rbuf[ITM_BUFSIZE]; /* data */
int users;
@@ -88,9 +88,9 @@
static void itmtouch_irq(struct urb *urb, struct pt_regs *regs)
{
- struct itmtouch_dev * itmtouch = urb->context;
+ struct itmtouch_dev *itmtouch = urb->context;
unsigned char *data = urb->transfer_buffer;
- struct input_dev *dev = &itmtouch->inputdev;
+ struct input_dev *dev = itmtouch->inputdev;
int retval;
switch (urb->status) {
@@ -156,49 +156,62 @@
static int itmtouch_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
struct itmtouch_dev *itmtouch;
+ struct input_dev *input_dev;
struct usb_host_interface *interface;
struct usb_endpoint_descriptor *endpoint;
struct usb_device *udev = interface_to_usbdev(intf);
unsigned int pipe;
unsigned int maxp;
- char path[PATH_SIZE];
interface = intf->cur_altsetting;
endpoint = &interface->endpoint[0].desc;
- if (!(itmtouch = kzalloc(sizeof(struct itmtouch_dev), GFP_KERNEL))) {
+ itmtouch = kzalloc(sizeof(struct itmtouch_dev), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!itmtouch || !input_dev) {
err("%s - Out of memory.", __FUNCTION__);
- return -ENOMEM;
+ goto fail;
}
itmtouch->usbdev = udev;
+ itmtouch->inputdev = input_dev;
- itmtouch->inputdev.private = itmtouch;
- itmtouch->inputdev.open = itmtouch_open;
- itmtouch->inputdev.close = itmtouch_close;
+ if (udev->manufacturer)
+ strlcpy(itmtouch->name, udev->manufacturer, sizeof(itmtouch->name));
- usb_make_path(udev, path, PATH_SIZE);
-
- itmtouch->inputdev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
- itmtouch->inputdev.absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
- itmtouch->inputdev.keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
-
- itmtouch->inputdev.name = itmtouch->name;
- itmtouch->inputdev.phys = itmtouch->phys;
- usb_to_input_id(udev, &itmtouch->inputdev.id);
- itmtouch->inputdev.dev = &intf->dev;
+ if (udev->product) {
+ if (udev->manufacturer)
+ strlcat(itmtouch->name, " ", sizeof(itmtouch->name));
+ strlcat(itmtouch->name, udev->product, sizeof(itmtouch->name));
+ }
if (!strlen(itmtouch->name))
sprintf(itmtouch->name, "USB ITM touchscreen");
+ usb_make_path(udev, itmtouch->phys, sizeof(itmtouch->phys));
+ strlcpy(itmtouch->phys, "/input0", sizeof(itmtouch->phys));
+
+ input_dev->name = itmtouch->name;
+ input_dev->phys = itmtouch->phys;
+ usb_to_input_id(udev, &input_dev->id);
+ input_dev->cdev.dev = &intf->dev;
+ input_dev->private = itmtouch;
+
+ input_dev->open = itmtouch_open;
+ input_dev->close = itmtouch_close;
+
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
+ input_dev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
+ input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
+
/* device limits */
/* as specified by the ITM datasheet, X and Y are 12bit,
* Z (pressure) is 8 bit. However, the fields are defined up
* to 14 bits for future possible expansion.
*/
- input_set_abs_params(&itmtouch->inputdev, ABS_X, 0, 0x0FFF, 2, 0);
- input_set_abs_params(&itmtouch->inputdev, ABS_Y, 0, 0x0FFF, 2, 0);
- input_set_abs_params(&itmtouch->inputdev, ABS_PRESSURE, 0, 0xFF, 2, 0);
+ input_set_abs_params(input_dev, ABS_X, 0, 0x0FFF, 2, 0);
+ input_set_abs_params(input_dev, ABS_Y, 0, 0x0FFF, 2, 0);
+ input_set_abs_params(input_dev, ABS_PRESSURE, 0, 0xFF, 2, 0);
/* initialise the URB so we can read from the transport stream */
pipe = usb_rcvintpipe(itmtouch->usbdev, endpoint->bEndpointAddress);
@@ -208,22 +221,23 @@
maxp = ITM_BUFSIZE;
itmtouch->readurb = usb_alloc_urb(0, GFP_KERNEL);
-
if (!itmtouch->readurb) {
dbg("%s - usb_alloc_urb failed: itmtouch->readurb", __FUNCTION__);
- kfree(itmtouch);
- return -ENOMEM;
+ goto fail;
}
usb_fill_int_urb(itmtouch->readurb, itmtouch->usbdev, pipe, itmtouch->rbuf,
maxp, itmtouch_irq, itmtouch, endpoint->bInterval);
- input_register_device(&itmtouch->inputdev);
+ input_register_device(itmtouch->inputdev);
- printk(KERN_INFO "itmtouch: %s registered on %s\n", itmtouch->name, path);
usb_set_intfdata(intf, itmtouch);
return 0;
+
+ fail: input_free_device(input_dev);
+ kfree(itmtouch);
+ return -ENOMEM;
}
static void itmtouch_disconnect(struct usb_interface *intf)
@@ -233,7 +247,7 @@
usb_set_intfdata(intf, NULL);
if (itmtouch) {
- input_unregister_device(&itmtouch->inputdev);
+ input_unregister_device(itmtouch->inputdev);
usb_kill_urb(itmtouch->readurb);
usb_free_urb(itmtouch->readurb);
kfree(itmtouch);