/*
* This is where hid.c calls us to connect a hid device to the hiddev driver
*/
int hiddev_connect(struct hid_device *hid)
{
struct hiddev *hiddev;
int minor, i;
char devfs_name[16];
if ((hid->quirks & HID_QUIRK_HIDDEV) == 0) {
for (i = 0; i < hid->maxcollection; i++)
if (hid->collection[i].type ==
HID_COLLECTION_APPLICATION &&
!IS_INPUT_APPLICATION(hid->collection[i].usage))
break;
if (i == hid->maxcollection)
return -1;
}
for (minor = 0; minor < HIDDEV_MINORS && hiddev_table[minor]; minor++);
if (minor == HIDDEV_MINORS) {
printk(KERN_ERR "hiddev: no more free hiddev devices\n");
return -1;
}
if (!(hiddev = kmalloc(sizeof(struct hiddev), GFP_KERNEL)))
return -1;
memset(hiddev, 0, sizeof(struct hiddev));
init_waitqueue_head(&hiddev->wait);
hiddev->minor = minor;
hiddev_table[minor] = hiddev;
hiddev->hid = hid;
hiddev->exist = 1;
sprintf(devfs_name, "hiddev%d", minor);
hiddev->devfs = devfs_register(hiddev_devfs_handle, devfs_name,
DEVFS_FL_DEFAULT, USB_MAJOR,
minor + HIDDEV_MINOR_BASE,
S_IFCHR | S_IRUGO | S_IWUSR,
&hiddev_fops, NULL);
hid->minor = minor;
hid->hiddev = hiddev;
return 0;
}
/*
* This is where hid.c calls us to connect a hid device to the hiddev driver
*/
int hiddev_connect(struct hid_device *hid)
{
struct hiddev *hiddev;
int i;
int retval;
for (i = 0; i < hid->maxcollection; i++)
if (hid->collection[i].type ==
HID_COLLECTION_APPLICATION &&
!IS_INPUT_APPLICATION(hid->collection[i].usage))
break;
if (i == hid->maxcollection && (hid->quirks & HID_QUIRK_HIDDEV) == 0)
return -1;
if (!(hiddev = kmalloc(sizeof(struct hiddev), GFP_KERNEL)))
return -1;
memset(hiddev, 0, sizeof(struct hiddev));
retval = usb_register_dev(hid->intf, &hiddev_class);
if (retval) {
err("Not able to get a minor for this device.");
kfree(hiddev);
return -1;
}
init_waitqueue_head(&hiddev->wait);
hiddev_table[hid->intf->minor - HIDDEV_MINOR_BASE] = hiddev;
hiddev->hid = hid;
hiddev->exist = 1;
hid->minor = hid->intf->minor;
hid->hiddev = hiddev;
return 0;
}
