1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Jabra USB HID Driver 4 * 5 * Copyright (c) 2017 Niels Skou Olsen <nolsen@jabra.com> 6 */ 7 8 /* 9 */ 10 11 #include <linux/hid.h> 12 #include <linux/module.h> 13 14 #include "hid-ids.h" 15 16 #define HID_UP_VENDOR_DEFINED_MIN 0xff000000 17 #define HID_UP_VENDOR_DEFINED_MAX 0xffff0000 18 19 static int jabra_input_mapping(struct hid_device *hdev, 20 struct hid_input *hi, 21 struct hid_field *field, 22 struct hid_usage *usage, 23 unsigned long **bit, int *max) 24 { 25 int is_vendor_defined = 26 ((usage->hid & HID_USAGE_PAGE) >= HID_UP_VENDOR_DEFINED_MIN && 27 (usage->hid & HID_USAGE_PAGE) <= HID_UP_VENDOR_DEFINED_MAX); 28 29 dbg_hid("hid=0x%08x appl=0x%08x coll_idx=0x%02x usage_idx=0x%02x: %s\n", 30 usage->hid, 31 field->application, 32 usage->collection_index, 33 usage->usage_index, 34 is_vendor_defined ? "ignored" : "defaulted"); 35 36 /* Ignore vendor defined usages, default map standard usages */ 37 return is_vendor_defined ? -1 : 0; 38 } 39 40 static const struct hid_device_id jabra_devices[] = { 41 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, HID_ANY_ID) }, 42 { } 43 }; 44 MODULE_DEVICE_TABLE(hid, jabra_devices); 45 46 static struct hid_driver jabra_driver = { 47 .name = "jabra", 48 .id_table = jabra_devices, 49 .input_mapping = jabra_input_mapping, 50 }; 51 module_hid_driver(jabra_driver); 52 53 MODULE_AUTHOR("Niels Skou Olsen <nolsen@jabra.com>"); 54 MODULE_DESCRIPTION("Jabra USB HID Driver"); 55 MODULE_LICENSE("GPL"); 56