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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /drivers/hid/hid-hyperx.c
downloadlinux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz
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Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'drivers/hid/hid-hyperx.c')
-rw-r--r--drivers/hid/hid-hyperx.c117
1 files changed, 117 insertions, 0 deletions
diff --git a/drivers/hid/hid-hyperx.c b/drivers/hid/hid-hyperx.c
new file mode 100644
index 000000000..18d2dc24c
--- /dev/null
+++ b/drivers/hid/hid-hyperx.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * HID driver for the HyperX QuadCast 2 microphone
+ *
+ * The tap-to-mute button is handled entirely in the device firmware: it gates
+ * the audio internally and does not send the Telephony "Phone Mute" usage its
+ * own report descriptor advertises. The resulting mute state is only reported
+ * through a vendor-defined collection, which hid-input cannot map, so the
+ * button is invisible to userspace.
+ *
+ * Copyright (c) 2026 Benjamin Blume <benjaminblume@posteo.de>
+ */
+
+#include <linux/hid.h>
+#include <linux/input.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+#define HYPERX_QC2_REPORT_ID 0x77
+#define HYPERX_QC2_EVENT_MUTE 0x06
+#define HYPERX_QC2_MUTE_LEN 3
+
+struct hyperx_drvdata {
+ struct input_dev *input;
+ bool muted;
+ bool have_state;
+};
+
+static int hyperx_input_configured(struct hid_device *hdev,
+ struct hid_input *hi)
+{
+ struct hyperx_drvdata *drvdata = hid_get_drvdata(hdev);
+
+ /*
+ * The device exposes several application collections. Prefer the
+ * telephony one, which already advertises KEY_MICMUTE, and fall back
+ * to the first collection otherwise.
+ */
+ if (!drvdata->input || test_bit(KEY_MICMUTE, hi->input->keybit)) {
+ drvdata->input = hi->input;
+ input_set_capability(drvdata->input, EV_KEY, KEY_MICMUTE);
+ }
+
+ return 0;
+}
+
+static int hyperx_raw_event(struct hid_device *hdev, struct hid_report *report,
+ u8 *data, int size)
+{
+ struct hyperx_drvdata *drvdata = hid_get_drvdata(hdev);
+ bool muted;
+
+ if (!(hdev->claimed & HID_CLAIMED_INPUT) || !drvdata->input)
+ return 0;
+
+ if (size < HYPERX_QC2_MUTE_LEN || data[0] != HYPERX_QC2_REPORT_ID ||
+ data[1] != HYPERX_QC2_EVENT_MUTE)
+ return 0;
+
+ muted = data[2];
+ if (drvdata->have_state && muted == drvdata->muted)
+ return 0;
+
+ drvdata->muted = muted;
+ drvdata->have_state = true;
+
+ /*
+ * The device reports the resulting absolute state, while KEY_MICMUTE is
+ * a momentary key that userspace acts on as a toggle. Emit one
+ * keypress per state change.
+ */
+ input_report_key(drvdata->input, KEY_MICMUTE, 1);
+ input_sync(drvdata->input);
+ input_report_key(drvdata->input, KEY_MICMUTE, 0);
+ input_sync(drvdata->input);
+
+ return 0;
+}
+
+static int hyperx_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ struct hyperx_drvdata *drvdata;
+ int ret;
+
+ drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+
+ hid_set_drvdata(hdev, drvdata);
+
+ ret = hid_parse(hdev);
+ if (ret)
+ return ret;
+
+ return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+}
+
+static const struct hid_device_id hyperx_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_HP,
+ USB_PRODUCT_ID_HP_HYPERX_QUADCAST_2) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, hyperx_devices);
+
+static struct hid_driver hyperx_driver = {
+ .name = "hyperx",
+ .id_table = hyperx_devices,
+ .probe = hyperx_probe,
+ .input_configured = hyperx_input_configured,
+ .raw_event = hyperx_raw_event,
+};
+module_hid_driver(hyperx_driver);
+
+MODULE_DESCRIPTION("HID driver for the HyperX QuadCast 2 microphone");
+MODULE_AUTHOR("Benjamin Blume <benjaminblume@posteo.de>");
+MODULE_LICENSE("GPL");