From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta1.migadu.com (out-99.mta1.migadu.com [95.215.58.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 34DC14F0525 for ; Fri, 4 Sep 2026 15:01:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.99 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788534098; cv=none; b=ZTJ7vKxyt23ubuPpi7slstUX+EKOubFK3adcVSjlMBExeYzVUeUvUs+EaQtWcU+0O7UzaATqVwFaljgOAIL6Qeee3yy3kbYlTWti3X/bTOHxEDWujJClom68RWQn0FGTsvMcT2wYWMTLZ0GrTjJw59aW1tidqTB38MCDFt3EWXQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788534098; c=relaxed/simple; bh=ZP+VhVA1KoG09GWCay87QJp46X+GBfZROMv3M2JvsNo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dVsjiHjP/abuoMjtlJRK4QRSVzmVKSb+U2Jd3IPTwHgZkRFMHlJlrZweTo2cQm1Kx5AxkdcxOU3eSu6ScaUIBaomn0MdD0n08Bm3Rj308szJHQkgNvtNSZsNcAT9WfKS1bt+V34+u+hf+sTHQy0egfoOt+mMy/nFfLeRkvKzCHI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=GgxtbxdU; arc=none smtp.client-ip=95.215.58.99 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="GgxtbxdU" X-Envelope-To: linux-kernel@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=ZP+VhVA1KoG09GWCay87QJp46X+GBfZROMv3M2JvsNo=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1788534094; v=1; x=1789138894; b=GgxtbxdU8r9tTqbyF9LThx+JvW8OkBKPt5ngRF/kvqloVVtNJW28GGSHOsZ2VJ0TP2au3wGB pIkdFCtGhqYXxRZpIF610phn6Vf86jpwQlX1wGrNjnl4W9oqU5qNWFZ6Q7SnNryEavEZsmT5hxZ zX1fLepHauY2kwXhdGhPPR8Q= X-Envelope-To: linux-kernel@vger.kernel.org Received: by smtp.migadu.com with ESMTPS id 750d5d8d67a6bbf1; Fri, 04 Sep 2026 15:01:33 +0000 X-Mizu-Trace-ID: 750d5d8d67a6bbf1 X-Migadu-Flow: FLOW_OUT From: Denis Benato To: linux-kernel@vger.kernel.org Cc: linux-input@vger.kernel.org, "Benjamin Tissoires" , "Jiri Kosina" , "Luke D . Jones" , "Mateusz Schwartz" , "Denis Benato" , "Jonathan LoBue" , "Khamunetri Clark" , "Derek J. Clark" , Denis Benato Subject: [PATCH v5 05/13] HID: asus: add vibration strength configuration Date: Fri, 4 Sep 2026 14:58:36 +0000 Message-ID: <20260904145845.184887-6-denis.benato@linux.dev> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260904145845.184887-1-denis.benato@linux.dev> References: <20260904145845.184887-1-denis.benato@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ASUS ROG Ally handhelds support the vibration strength to be configured: add sysfs attributes to allow userspace configure motors vibration intensity. Assisted-by: opencode:glm-5.2 Signed-off-by: Denis Benato Signed-off-by: Luke Jones --- drivers/hid/hid-asus.c | 195 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 195 insertions(+) diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c index 4714ebb4a543..659956ebaefc 100644 --- a/drivers/hid/hid-asus.c +++ b/drivers/hid/hid-asus.c @@ -206,6 +206,10 @@ struct ally_config { u8 left_trigger_max; u8 right_trigger_min; u8 right_trigger_max; + + /* Vibration settings */ + u8 vibration_intensity_left; + u8 vibration_intensity_right; }; /* @@ -829,15 +833,193 @@ static ssize_t xbox_controller_store(struct device *dev, static DEVICE_ATTR_RW(xbox_controller); +/** + * ally_set_vibration_intensity() - Set vibration intensity values + * @ally: ally handheld structure + * @hdev: HID device + * @left: Left motor intensity (0-100) + * @right: Right motor intensity (0-100) + * + * Return: 0 on success, negative errno on failure + */ +static int ally_set_vibration_intensity(struct ally_handheld *ally, + struct hid_device *hdev, u8 left, u8 right) +{ + const u8 data[] = { left, right }; + int ret; + + u8 *buf __free(kfree) = ally_alloc_cmd(CMD_SET_VIBRATION_INTENSITY, data, sizeof(data)); + if (!buf) + return -ENOMEM; + + ret = ally_gamepad_send_packet(ally, hdev, buf, ROG_ALLY_REPORT_SIZE); + if (ret < 0) { + hid_err(hdev, "Failed to set vibration intensity: %d\n", ret); + return ret; + } + + return 0; +} + +static ssize_t left_vibration_intensity_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = to_hid_device(dev); + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + struct ally_handheld *ally = drvdata->rog_ally; + struct ally_config *cfg; + + if (!ally) + return -ENODEV; + + cfg = ally_get_config(ally); + if (!cfg) + return -ENODEV; + + guard(mutex)(&cfg->config_mutex); + + return sysfs_emit(buf, "%u\n", cfg->vibration_intensity_left); +} + +static ssize_t left_vibration_intensity_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = to_hid_device(dev); + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + struct ally_handheld *ally = drvdata->rog_ally; + struct ally_config *cfg; + u8 value; + int ret; + + if (!ally) + return -ENODEV; + + cfg = ally_get_config(ally); + if (!cfg) + return -ENODEV; + + ret = kstrtou8(buf, 10, &value); + if (ret || value > 100) + return -EINVAL; + + guard(mutex)(&cfg->config_mutex); + + ret = ally_set_vibration_intensity(ally, hdev, value, + cfg->vibration_intensity_right); + if (ret < 0) + return ret; + + cfg->vibration_intensity_left = value; + + return count; +} + +static ssize_t left_vibration_intensity_range_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "0 100\n"); +} + +static ssize_t right_vibration_intensity_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct hid_device *hdev = to_hid_device(dev); + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + struct ally_handheld *ally = drvdata->rog_ally; + struct ally_config *cfg; + + if (!ally) + return -ENODEV; + + cfg = ally_get_config(ally); + if (!cfg) + return -ENODEV; + + guard(mutex)(&cfg->config_mutex); + + return sysfs_emit(buf, "%u\n", cfg->vibration_intensity_right); +} + +static ssize_t right_vibration_intensity_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hid_device *hdev = to_hid_device(dev); + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + struct ally_handheld *ally = drvdata->rog_ally; + struct ally_config *cfg; + u8 value; + int ret; + + if (!ally) + return -ENODEV; + + cfg = ally_get_config(ally); + if (!cfg) + return -ENODEV; + + ret = kstrtou8(buf, 10, &value); + if (ret || value > 100) + return -EINVAL; + + guard(mutex)(&cfg->config_mutex); + + ret = ally_set_vibration_intensity(ally, hdev, + cfg->vibration_intensity_left, value); + if (ret < 0) + return ret; + + cfg->vibration_intensity_right = value; + + return count; +} + +static ssize_t right_vibration_intensity_range_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "0 100\n"); +} + +static struct device_attribute dev_attr_left_vibration_intensity = + __ATTR(intensity, 0644, left_vibration_intensity_show, left_vibration_intensity_store); + +static struct device_attribute dev_attr_left_vibration_intensity_range = + __ATTR(intensity_range, 0444, left_vibration_intensity_range_show, NULL); + +static struct device_attribute dev_attr_right_vibration_intensity = + __ATTR(intensity, 0644, right_vibration_intensity_show, right_vibration_intensity_store); + +static struct device_attribute dev_attr_right_vibration_intensity_range = + __ATTR(intensity_range, 0444, right_vibration_intensity_range_show, NULL); + static struct attribute *ally_config_attrs[] = { &dev_attr_xbox_controller.attr, NULL }; +static struct attribute *ally_left_vibration_attrs[] = { + &dev_attr_left_vibration_intensity.attr, + &dev_attr_left_vibration_intensity_range.attr, + NULL +}; + +static struct attribute *ally_right_vibration_attrs[] = { + &dev_attr_right_vibration_intensity.attr, + &dev_attr_right_vibration_intensity_range.attr, + NULL +}; + static const struct attribute_group ally_attr_groups[] = { { .attrs = ally_config_attrs, }, + { + .name = "left_vibration", + .attrs = ally_left_vibration_attrs, + }, + { + .name = "right_vibration", + .attrs = ally_right_vibration_attrs, + }, }; /** @@ -880,6 +1062,8 @@ static struct ally_config *ally_config_create(struct hid_device *hdev, struct al cfg->left_outer_threshold = 90; cfg->right_deadzone = 10; cfg->right_outer_threshold = 90; + cfg->vibration_intensity_left = 100; + cfg->vibration_intensity_right = 100; } for (sysfs_i = 0; sysfs_i < ARRAY_SIZE(ally_attr_groups); sysfs_i++) { @@ -1215,6 +1399,17 @@ static int hid_asus_ally_init(struct hid_device *hdev, struct ally_handheld *all ret); } + /* + * The MCU does not keep the vibration intensity across a reset: + * send the recorded values again, whichever interface probed. + */ + ret = ally_set_vibration_intensity(ally, hdev, + cfg->vibration_intensity_left, + cfg->vibration_intensity_right); + if (ret < 0) + hid_warn(hdev, "Failed to restore vibration intensity: %d\n", + ret); + return 0; } -- 2.47.3