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86 lines
2.1 KiB
86 lines
2.1 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* USB HID driver for Glorious PC Gaming Race |
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* Glorious Model O, O- and D mice. |
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* |
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* Copyright (c) 2020 Samuel Čavoj <[email protected]> |
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*/ |
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/* |
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*/ |
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#include <linux/hid.h> |
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#include <linux/module.h> |
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#include "hid-ids.h" |
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MODULE_AUTHOR("Samuel Čavoj <[email protected]>"); |
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MODULE_DESCRIPTION("HID driver for Glorious PC Gaming Race mice"); |
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/* |
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* Glorious Model O and O- specify the const flag in the consumer input |
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* report descriptor, which leads to inputs being ignored. Fix this |
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* by patching the descriptor. |
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*/ |
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static __u8 *glorious_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
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unsigned int *rsize) |
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{ |
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if (*rsize == 213 && |
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rdesc[84] == 129 && rdesc[112] == 129 && rdesc[140] == 129 && |
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rdesc[85] == 3 && rdesc[113] == 3 && rdesc[141] == 3) { |
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hid_info(hdev, "patching Glorious Model O consumer control report descriptor\n"); |
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rdesc[85] = rdesc[113] = rdesc[141] = \ |
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HID_MAIN_ITEM_VARIABLE | HID_MAIN_ITEM_RELATIVE; |
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} |
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return rdesc; |
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} |
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static void glorious_update_name(struct hid_device *hdev) |
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{ |
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const char *model = "Device"; |
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switch (hdev->product) { |
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case USB_DEVICE_ID_GLORIOUS_MODEL_O: |
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model = "Model O"; break; |
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case USB_DEVICE_ID_GLORIOUS_MODEL_D: |
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model = "Model D"; break; |
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} |
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snprintf(hdev->name, sizeof(hdev->name), "%s %s", "Glorious", model); |
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} |
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static int glorious_probe(struct hid_device *hdev, |
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const struct hid_device_id *id) |
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{ |
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int ret; |
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hdev->quirks |= HID_QUIRK_INPUT_PER_APP; |
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ret = hid_parse(hdev); |
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if (ret) |
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return ret; |
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glorious_update_name(hdev); |
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return hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
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} |
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static const struct hid_device_id glorious_devices[] = { |
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{ HID_USB_DEVICE(USB_VENDOR_ID_GLORIOUS, |
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USB_DEVICE_ID_GLORIOUS_MODEL_O) }, |
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{ HID_USB_DEVICE(USB_VENDOR_ID_GLORIOUS, |
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USB_DEVICE_ID_GLORIOUS_MODEL_D) }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(hid, glorious_devices); |
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static struct hid_driver glorious_driver = { |
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.name = "glorious", |
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.id_table = glorious_devices, |
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.probe = glorious_probe, |
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.report_fixup = glorious_report_fixup |
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}; |
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module_hid_driver(glorious_driver); |
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MODULE_LICENSE("GPL");
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