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[108.228.232.20]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-12bed93f861sm18523808c88.0.2026.04.06.21.13.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Apr 2026 21:14:00 -0700 (PDT) From: "Derek J. Clark" To: Jiri Kosina , Benjamin Tissoires Cc: "Pierre-Loup A . Griffais" , Lambert Fan , "Derek J . Clark" , linux-input@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 5/5] HID: hid-oxp: Add Vibration Intensity Attributes Date: Tue, 7 Apr 2026 04:13:54 +0000 Message-ID: <20260407041354.2283201-6-derekjohn.clark@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260407041354.2283201-1-derekjohn.clark@gmail.com> References: <20260407041354.2283201-1-derekjohn.clark@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Adds attribute for setting the rumble intensity level. This setting must be re-applied after the gamepad mode is set as doing so resets this to the default value. Signed-off-by: Derek J. Clark --- drivers/hid/hid-oxp.c | 80 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 78 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-oxp.c b/drivers/hid/hid-oxp.c index 1100f1f14f35..cad6973089a0 100644 --- a/drivers/hid/hid-oxp.c +++ b/drivers/hid/hid-oxp.c @@ -34,6 +34,7 @@ enum oxp_function_index { OXP_FID_GEN1_RGB_SET =3D 0x07, OXP_FID_GEN1_RGB_REPLY =3D 0x0f, OXP_FID_GEN2_TOGGLE_MODE =3D 0xb2, + OXP_FID_GEN2_RUMBLE_SET =3D 0xb3, OXP_FID_GEN2_KEY_STATE =3D 0xb4, OXP_FID_GEN2_STATUS_EVENT =3D 0xb8, }; @@ -178,6 +179,7 @@ static struct oxp_hid_cfg { struct mutex cfg_mutex; /*ensure single synchronous output report*/ u8 rgb_brightness; u8 gamepad_mode; + u8 rumble_intensity; u8 rgb_effect; u8 rgb_speed; u8 rgb_en; @@ -263,6 +265,11 @@ static const char *const oxp_rgb_effect_text[] =3D { [OXP_EFFECT_MONO_LIST] =3D "monocolor", }; =20 +enum oxp_rumble_side_index { + OXP_RUMBLE_LEFT =3D 0x00, + OXP_RUMBLE_RIGHT, +}; + struct oxp_gen_1_rgb_report { u8 report_id; u8 message_id; @@ -338,6 +345,7 @@ static int oxp_hid_raw_event_gen_1(struct hid_device *h= dev, =20 static int oxp_gen_2_property_out(enum oxp_function_index fid, u8 *data, u= 8 data_size); static int oxp_set_buttons(void); +static int oxp_rumble_intensity_set(u8 intensity); =20 static void oxp_mcu_init_fn(struct work_struct *work) { @@ -365,6 +373,12 @@ static void oxp_mcu_init_fn(struct work_struct *work) if (ret) dev_err(&drvdata.hdev->dev, "Error: Failed to set gamepad mode: %i\n", ret); + + /* Set vibration level */ + ret =3D oxp_rumble_intensity_set(drvdata.rumble_intensity); + if (ret) + dev_err(&drvdata.hdev->dev, + "Error: Failed to set rumble intensity: %i\n", ret); } =20 static DECLARE_DELAYED_WORK(oxp_mcu_init, oxp_mcu_init_fn); @@ -513,6 +527,14 @@ static ssize_t gamepad_mode_store(struct device *dev, =20 drvdata.gamepad_mode =3D data[0]; =20 + if (drvdata.gamepad_mode =3D=3D OXP_GP_MODE_DEBUG) + return count; + + /* Re-apply rumble settings as switching gamepad mode will override */ + ret =3D oxp_rumble_intensity_set(drvdata.rumble_intensity); + if (ret) + return ret; + return count; } =20 @@ -858,6 +880,59 @@ static ssize_t button_mapping_options_show(struct devi= ce *dev, } static DEVICE_ATTR_RO(button_mapping_options); =20 +static int oxp_rumble_intensity_set(u8 intensity) +{ + u8 header[15] =3D { 0x02, 0x38, 0x02, 0xe3, 0x39, 0xe3, 0x39, 0xe3, + 0x39, 0x01, intensity, 0x05, 0xe3, 0x39, 0xe3 }; + u8 footer[9] =3D { 0x39, 0xe3, 0x39, 0xe3, 0xe3, 0x02, 0x04, 0x39, 0x39 }; + size_t footer_size =3D ARRAY_SIZE(footer); + size_t header_size =3D ARRAY_SIZE(header); + u8 data[59] =3D { 0x0 }; + size_t data_size =3D ARRAY_SIZE(data); + + memcpy(data, header, header_size); + memcpy(data + data_size - footer_size, footer, footer_size); + + return oxp_gen_2_property_out(OXP_FID_GEN2_RUMBLE_SET, data, data_size); +} + +static ssize_t rumble_intensity_store(struct device *dev, + struct device_attribute *attr, const char *buf, + size_t count) +{ + int ret; + u8 val; + + ret =3D kstrtou8(buf, 10, &val); + if (ret) + return ret; + + if (val < 0 || val > 5) + return -EINVAL; + + ret =3D oxp_rumble_intensity_set(val); + if (ret) + return ret; + + drvdata.rumble_intensity =3D val; + + return count; +} + +static ssize_t rumble_intensity_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "%i\n", drvdata.rumble_intensity); +} +static DEVICE_ATTR_RW(rumble_intensity); + +static ssize_t rumble_intensity_range_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sysfs_emit(buf, "0-5\n"); +} +static DEVICE_ATTR_RO(rumble_intensity_range); + #define OXP_DEVICE_ATTR_RW(_name, _group) = \ static ssize_t _name##_store(struct device *dev, \ struct device_attribute *attr, \ @@ -949,6 +1024,8 @@ static struct attribute *oxp_cfg_attrs[] =3D { &dev_attr_gamepad_mode.attr, &dev_attr_gamepad_mode_index.attr, &dev_attr_reset_buttons.attr, + &dev_attr_rumble_intensity.attr, + &dev_attr_rumble_intensity_range.attr, NULL, }; =20 @@ -1420,10 +1497,9 @@ static int oxp_cfg_probe(struct hid_device *hdev, u1= 6 up) =20 drvdata.bmap_1 =3D bmap_1; drvdata.bmap_2 =3D bmap_2; + drvdata.rumble_intensity =3D 5; mod_delayed_work(system_wq, &oxp_mcu_init, msecs_to_jiffies(50)); =20 - drvdata.gamepad_mode =3D OXP_GP_MODE_XINPUT; - ret =3D devm_device_add_group(&hdev->dev, &oxp_cfg_attrs_group); if (ret) return dev_err_probe(&hdev->dev, ret, --=20 2.53.0