From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dl1-f50.google.com (mail-dl1-f50.google.com [74.125.82.50]) (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 39CA723B628 for ; Sat, 24 Jan 2026 01:49:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.50 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769219367; cv=none; b=WTTnVJ1adX8Rb3Qct4v4ia2S2ts93VGCXeQ6km28YsHJIV6bxdRoteV/Vw3PLzLkLjJPPjQNCH0xwJC8bxUWpEHdq49IHiEC65oZ2QbA5tr8yZkhy30WYDCqGtDfTZdngqOoXWFe7LhMHKiZ4XgZRnLiPwjOTdKA3XCbHw+Dmms= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769219367; c=relaxed/simple; bh=jQsLso/xojyFI3Qt+bgJOnTQ9btQK1wLsfz5szkgT3s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=twXD34ouoTet50Ibp24jyCbwjJDZsq85wp5G/6IFFUSX+2v34OeS8bQC8tw7U0EfsonLIhz4tkiK1B3BAGzvM196wTIoh4o1zsgPZQB6Ubq5yJWJUYi9UznJeVNDiZvGgg5Pk1BcUfrtjaAFeYGa7jOG3b3iUAfsGK7UOQ8yleU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Y/mNibAS; arc=none smtp.client-ip=74.125.82.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Y/mNibAS" Received: by mail-dl1-f50.google.com with SMTP id a92af1059eb24-121a0bcd364so4850046c88.0 for ; Fri, 23 Jan 2026 17:49:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769219363; x=1769824163; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=pbc+jDHPV6g8FKHvn7of3JFw4LTLv5qp1ch2s8G5+AE=; b=Y/mNibASmy+fjhQdcYif+wRIJB+Y2wF/lW79sk6ZOme1NkIQVLmkPOBnpQRS5aH90s iFe6Mm4Xp7C0kpPJ1qAl+lxdqGOrCUrH6SnIqDHANykAqSaMMvgWWKl05IAi/mtIB+A4 Z/KBf5T+WKaiN1e91TKukTuSZ77L+oOH4Xrv1UUjLAJ5/IkXLaKF2unwOrFrJ8jkJc0A DJq5vLLy53w5fEcbkkspJdeqbPOxjkVOMp9v6NTpho6WFE4f4ypNETNT0Odjp6tQPP1k WiKAO6HCp0Oblreq9runUbXRmpXvExKVDNYy7W4loZGDsDDC15McdzDAqgM+7+ZFgboX Jh0Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769219363; x=1769824163; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=pbc+jDHPV6g8FKHvn7of3JFw4LTLv5qp1ch2s8G5+AE=; b=NdWLmozigRWnvaRiJ3GpiqUGRQIvDqSLz8qQh8lQTe8gWJNGpROAblVD/iZUDj+UQK PtyLt80f8HMj/rGl1erPL7ysaa2TMLHNiT0zlNUuLkXscWOOsz/ntvXX9BxpZKG4Z+8n eZmiluIbLGraYGsQ53a1EC9SZSS61WkFZzohl3Sa6Dtmm0TG+FQkjxWnFOjkHcIbHrK5 1k7OTE1B8vgWWFzEiF/A/wOicEDDz2o76xhz+GfAj7JoucDaH90kOux1cQMBFm53NGW2 a2DequM85T4qqsxlsCrqQB1wMkkLFaH8JKN6djfaHSB56WG+fVM8st84lw+VmME5Qsuk IkRw== X-Forwarded-Encrypted: i=1; AJvYcCWVI7cEIcFSBeIoX00M+8MB4ovS0nKKdooRbtZlgMCmNns5pCjCH67X9oRoXOm+43D4gW9j9EgXNPM=@vger.kernel.org X-Gm-Message-State: AOJu0Yw+JfA/9R5DVXkV5qlwYSAHSvTo6gfit9UsNg/+Z2xxvb11IxQM RdbBjxb/H8sKdAHO4uJQrD0Q6g/E6UTS/b/NY3TpmAVabYXu4vVIBbeN X-Gm-Gg: AZuq6aJW/1ckvlVZ4YY+Nzmpbyg4rp78R7aTD+ScmFleyZdIRsDHEg5PZ9Fa8WKrzQ4 AIjWUJsEY+XbQ52nlOGga8tqoek83sou1y7D3Fh1WFJh0xTcWmgqI1NCeXwTSWDXwKY2Vj/o1fG 7o9XQ0avHL8tgre8SayPgT1eXgkQb/iZXPKyVjUepobNPe2yr3P0HzjmTyKMMdH8apEOrnvQ4kj LjCa3neROVddsqHmmSrfJs3Tj1MsiqsBoJxocjxhbNqCin0yjsKwegsPa1KOOR65e+JxNPE6ReO ZnFWvgnKi2KpbDZNBxLff1+BjosIGnBn6RST7/dUF103dzM7K5jafnmHr9Ed64Zcxc3n/E/bjeV JDw5Xb+foj08JbKvYRh9cUvAyvYi98c7IvgggU614h7DfXJ0JHZEk7AuZRxHVkYfUke7GuFFUmI EJu6kU8yzfNtKFzwd/bQn5rMI8JhtaXCcs3EIV2KPKrG9rhM/nYHV7i06bz295qaE= X-Received: by 2002:a05:7301:4e0b:b0:2b7:1253:3d4f with SMTP id 5a478bee46e88-2b739957211mr2193694eec.8.1769219362617; Fri, 23 Jan 2026 17:49:22 -0800 (PST) Received: from lappy (108-228-232-20.lightspeed.sndgca.sbcglobal.net. [108.228.232.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2b73aa22707sm5160014eec.29.2026.01.23.17.49.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Jan 2026 17:49:22 -0800 (PST) From: "Derek J. Clark" To: Jiri Kosina , Benjamin Tissoires Cc: Mario Limonciello , Zhixin Zhang , Mia Shao , Mark Pearson , "Pierre-Loup A . Griffais" , "Derek J . Clark" , linux-input@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 13/16] HID: hid-lenovo-go-s: Add Touchpad Mode Attributes Date: Sat, 24 Jan 2026 01:49:04 +0000 Message-ID: <20260124014907.991265-14-derekjohn.clark@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260124014907.991265-1-derekjohn.clark@gmail.com> References: <20260124014907.991265-1-derekjohn.clark@gmail.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Adds attributes for managing the touchpad operating modes. Signed-off-by: Derek J. Clark --- drivers/hid/hid-lenovo-go-s.c | 142 ++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) diff --git a/drivers/hid/hid-lenovo-go-s.c b/drivers/hid/hid-lenovo-go-s.c index 076afdaa9628..38425e3d6cb2 100644 --- a/drivers/hid/hid-lenovo-go-s.c +++ b/drivers/hid/hid-lenovo-go-s.c @@ -47,6 +47,8 @@ struct hid_gos_cfg { u8 os_mode; u8 rgb_en; u8 tp_en; + u8 tp_linux_mode; + u8 tp_windows_mode; } drvdata; struct gos_cfg_attr { @@ -145,6 +147,22 @@ static const char *const dpad_mode_text[] = { [DIR4] = "4-way", }; +enum touchpad_mode_index { + TP_REL, + TP_ABS, +}; + +static const char *const touchpad_mode_text[] = { + [TP_REL] = "relative", + [TP_ABS] = "absolute", +}; + +enum touchpad_config_index { + CFG_WINDOWS_MODE = 0x03, + CFG_LINUX_MODE, + +}; + static int hid_gos_version_event(u8 *data) { struct version_report *ver_rep = (struct version_report *)data; @@ -204,6 +222,25 @@ static int hid_gos_gamepad_cfg_event(struct command_report *cmd_rep) return ret; } +static int hid_gos_touchpad_event(struct command_report *cmd_rep) +{ + int ret = 0; + + switch (cmd_rep->sub_cmd) { + case CFG_LINUX_MODE: + drvdata.tp_linux_mode = cmd_rep->data[0]; + break; + case CFG_WINDOWS_MODE: + drvdata.tp_windows_mode = cmd_rep->data[0]; + break; + default: + ret = -EINVAL; + break; + } + + return ret; +} + static int hid_gos_set_event_return(struct command_report *cmd_rep) { if (cmd_rep->data[0] != 0) @@ -251,7 +288,11 @@ static int hid_gos_raw_event(struct hid_device *hdev, struct hid_report *report, case GET_GAMEPAD_CFG: ret = hid_gos_gamepad_cfg_event(cmd_rep); break; + case GET_TP_PARAM: + ret = hid_gos_touchpad_event(cmd_rep); + break; case SET_GAMEPAD_CFG: + case SET_TP_PARAM: ret = hid_gos_set_event_return(cmd_rep); break; default: @@ -537,6 +578,95 @@ static ssize_t gamepad_property_options(struct device *dev, return count; } +static ssize_t touchpad_property_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count, + enum touchpad_config_index index) +{ + size_t size = 1; + u8 val = 0; + int ret; + + switch (index) { + case CFG_WINDOWS_MODE: + ret = sysfs_match_string(touchpad_mode_text, buf); + if (ret < 0) + return ret; + val = ret; + break; + case CFG_LINUX_MODE: + ret = sysfs_match_string(touchpad_mode_text, buf); + if (ret < 0) + return ret; + val = ret; + break; + default: + return -EINVAL; + } + if (!val) + size = 0; + + ret = mcu_property_out(drvdata.hdev, SET_TP_PARAM, index, &val, size); + if (ret < 0) + return ret; + + return count; +} + +static ssize_t touchpad_property_show(struct device *dev, + struct device_attribute *attr, char *buf, + enum touchpad_config_index index) +{ + int ret = 0; + u8 i; + + ret = mcu_property_out(drvdata.hdev, GET_TP_PARAM, index, 0, 0); + if (ret < 0) + return ret; + + switch (index) { + case CFG_WINDOWS_MODE: + i = drvdata.tp_windows_mode; + break; + case CFG_LINUX_MODE: + i = drvdata.tp_linux_mode; + break; + default: + return -EINVAL; + } + + if (i >= ARRAY_SIZE(touchpad_mode_text)) + return -EINVAL; + + return sysfs_emit(buf, "%s\n", touchpad_mode_text[i]); +} + +static ssize_t touchpad_property_options(struct device *dev, + struct device_attribute *attr, + char *buf, + enum touchpad_config_index index) +{ + size_t count = 0; + unsigned int i; + + switch (index) { + case CFG_WINDOWS_MODE: + case CFG_LINUX_MODE: + for (i = 0; i < ARRAY_SIZE(touchpad_mode_text); i++) { + count += sysfs_emit_at(buf, count, "%s ", + touchpad_mode_text[i]); + } + break; + default: + return count; + } + + if (count) + buf[count - 1] = '\n'; + + return count; +} + static ssize_t mcu_id_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -666,9 +796,21 @@ struct gos_cfg_attr touchpad_enabled = { FEATURE_TOUCHPAD_ENABLE }; LEGOS_DEVICE_ATTR_RW(touchpad_enabled, "enabled", index, gamepad); static DEVICE_ATTR_RO_NAMED(touchpad_enabled_index, "enabled_index"); +struct gos_cfg_attr touchpad_linux_mode = { CFG_LINUX_MODE }; +LEGOS_DEVICE_ATTR_RW(touchpad_linux_mode, "linux_mode", index, touchpad); +static DEVICE_ATTR_RO_NAMED(touchpad_linux_mode_index, "linux_mode_index"); + +struct gos_cfg_attr touchpad_windows_mode = { CFG_WINDOWS_MODE }; +LEGOS_DEVICE_ATTR_RW(touchpad_windows_mode, "windows_mode", index, touchpad); +static DEVICE_ATTR_RO_NAMED(touchpad_windows_mode_index, "windows_mode_index"); + static struct attribute *legos_touchpad_attrs[] = { &dev_attr_touchpad_enabled.attr, &dev_attr_touchpad_enabled_index.attr, + &dev_attr_touchpad_linux_mode.attr, + &dev_attr_touchpad_linux_mode_index.attr, + &dev_attr_touchpad_windows_mode.attr, + &dev_attr_touchpad_windows_mode_index.attr, NULL, }; -- 2.52.0