From patchwork Sat Feb 15 10:31:57 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Svyatoslav Ryhel X-Patchwork-Id: 13976025 Received: from mail-lf1-f53.google.com (mail-lf1-f53.google.com [209.85.167.53]) (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 D01F41A316F; Sat, 15 Feb 2025 10:32:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.53 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739615549; cv=none; b=rpBBjOWPJWiTrQKY6v6HWt7l3t5lWtnHLphvDPiB4EJw41sfAnqJbBGeUe7+EQgM7kC0xGHkkLzGnSYchKsvM5YqmKYqtFbmWlwnGAmhcgJXChrKuuIicCED2sMdGCIdXBeguGnsQ0AGu6jPsZztU02BlzrXDENsspidYvv4SDU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739615549; c=relaxed/simple; bh=ZDUMsjmo75Y9STqMDs2I/FG+a3gZTRX85+elzjyo4s8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=E3glHvjT47kNyMSuz+IftCnVjvZP/knEMkMrLpTiW3gkT+ZWKZiHYHZqpwLBBmncMZsj69tXj1/THT08rDTC95T9wfbXs22rsQMEYtZxaI3lHiq9GM9ijdabth+Of9f2/wqweZ1fWCWY9tJrTfAEyjItpaLJ2SsbtftwgQAR26g= 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=fDNLU00v; arc=none smtp.client-ip=209.85.167.53 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="fDNLU00v" Received: by mail-lf1-f53.google.com with SMTP id 2adb3069b0e04-5450475df18so3008281e87.2; Sat, 15 Feb 2025 02:32:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1739615546; x=1740220346; 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=Wgygo/iB0cU+FYRPxKeAja8hd0RTJCHWFazvBj9cQrI=; b=fDNLU00vHhtoIPEIJxuKUiqGceHnW1abxd0Cj6DqzPkmW/3b2EOVhqtQul8P0IHlb0 z0qFa60UxuqLdO9jMgqpnV0V/KdwLZez+puwfIZvrAHWs+hcpWMrtzrunAA0hBCH1xMR iz78+FLK+UQQMRRVAz5YBDPVWajRyRCvEfLHc9o0jbqVBGFO/Y4aN7cxW3XhhHvqsM1O eXgE25n6k3hHkegLPsDk+QTde1Sd8H/q8TArLjLzQI6zcdBCWZbFMcMUnAdi5ppf4bOg DPr4gQXW4NBLqlNsAmRoLQvBJ0XkcTc373x/km7XmYHMHtzqTF5NDAG/yP0SSa1WwqK5 sc7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739615546; x=1740220346; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Wgygo/iB0cU+FYRPxKeAja8hd0RTJCHWFazvBj9cQrI=; b=v1hK2tOYfViCGLI6kXIs/2Hil9fuDeiYx6dppUKI4152AhjPH0N4Wr85EAB00KYnvM In9gtK30G9ELKOs9Y2PfuBQzxx0pzmrGZRfW1q9dclE+R9vDRy3tmIMwytDhUNT699U6 tU/WOA1mifWdtPCXXi/xc96q+5fy/3FGJKs3RE0LegdxxlyxKGyaZCCB6AiizOQn4X7u aZWI1emPH1FBymnn8xk1vRDwp3MqpHXtOpjlr86XQl+VSXDhjxuifBRrQ1iB+2rj5xe/ nVhGjqUNMQ3Prxki7P/rXL+nfsw/LB0Hw3Rh1IMUZ5WMNGUGrWYiwco+4mBan6KtnSI5 whKQ== X-Forwarded-Encrypted: i=1; AJvYcCUME+p1SkFTAQYt1hpyoZ3IeRvDbSkB9E9A7yjeJ9LR0kzgJouOJ8ULN9ItcEhcBVzHTaZVtpBv9a10@vger.kernel.org, AJvYcCVFG2P/oS28kml64vHuZB5rA4ivgPPskb0/nlzH0kAUrnoS+rDvTRfQQ6O3daBqVAjrcEoPp4WazQlTBKQ=@vger.kernel.org, AJvYcCXZg7NS4K+bsR7WjpfYGPkAixDgqRxqGFou7zV8seVV7ARmAm3VkIoaw9PMx7rI32EwmVUGC2ELjjd6AF5h@vger.kernel.org X-Gm-Message-State: AOJu0Yy6Ldxs8SaKycScIwdTQIxQ5JputQzrCPWNze2uMdD8OJLQ1X7u r53qOsK0SPdbytQKwU/N0TnD+dG0arV7YTKIqkr6JAIMKMjp3Qp6 X-Gm-Gg: ASbGnctZyB5mVnWwID/n1oVmVRwI1NhaQD+BEp4u92ozu+JZH1o33oku04osMX9MG1h xGKHDBU+nbIZ8jLlA0Zw3uTUSjyzfHx9jdQLhzoYAYHG+5fIqkD1UvccC4UBCEYwCOSP7raPiNF iMNGF9aPoTwDaHbNFzHBI4OpmzjfOpK3db1nTAQrNehoufI/HJ1lqwhrMhxc1nFqYblzRQ1JP4D X4id2ZxIf83paRs1mhmRr5/b5BSaYPjFP6KueTKgZBMl1xpPr35sJbk591cQqonwBF/okeb74q+ dtkPaWs= X-Google-Smtp-Source: AGHT+IEC12XXfHdsAEOZXJh2h/gPfige6sCvK5UTAswy5RQfBb4fITdeXYCWxXDIPlTS/3VZsIFJxA== X-Received: by 2002:a05:6512:6ce:b0:545:2f9b:7589 with SMTP id 2adb3069b0e04-5452fe8fd91mr728897e87.50.1739615545726; Sat, 15 Feb 2025 02:32:25 -0800 (PST) Received: from xeon.. ([188.163.112.51]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-309298dc5eesm2201571fa.95.2025.02.15.02.32.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Feb 2025 02:32:25 -0800 (PST) From: Svyatoslav Ryhel To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter , Svyatoslav Ryhel , Javier Carrasco , Matti Vaittinen , Andy Shevchenko , Emil Gedenryd , Arthur Becker , Mudit Sharma , Per-Daniel Olsson , Subhajit Ghosh , Ivan Orlov , David Heidelberg Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v2 1/3] dt-bindings: iio: light: al3010: add al3000a support Date: Sat, 15 Feb 2025 12:31:57 +0200 Message-ID: <20250215103159.106343-2-clamor95@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250215103159.106343-1-clamor95@gmail.com> References: <20250215103159.106343-1-clamor95@gmail.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 AL3000a is an ambient light sensor quite closely related to exising AL3010 and can reuse exising schema for AL3010. Signed-off-by: Svyatoslav Ryhel --- .../devicetree/bindings/iio/light/dynaimage,al3010.yaml | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml b/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml index a3a979553e32..f1048c30e73e 100644 --- a/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml +++ b/Documentation/devicetree/bindings/iio/light/dynaimage,al3010.yaml @@ -4,14 +4,16 @@ $id: http://devicetree.org/schemas/iio/light/dynaimage,al3010.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Dyna-Image AL3010 sensor +title: Dyna-Image AL3000a/AL3010 sensor maintainers: - David Heidelberg properties: compatible: - const: dynaimage,al3010 + enum: + - dynaimage,al3000a + - dynaimage,al3010 reg: maxItems: 1 From patchwork Sat Feb 15 10:31:58 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Svyatoslav Ryhel X-Patchwork-Id: 13976026 Received: from mail-lj1-f182.google.com (mail-lj1-f182.google.com [209.85.208.182]) (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 5EB5D1A9B3F; 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([188.163.112.51]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-309298dc5eesm2201571fa.95.2025.02.15.02.32.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Feb 2025 02:32:27 -0800 (PST) From: Svyatoslav Ryhel To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter , Svyatoslav Ryhel , Javier Carrasco , Matti Vaittinen , Andy Shevchenko , Emil Gedenryd , Arthur Becker , Mudit Sharma , Per-Daniel Olsson , Subhajit Ghosh , Ivan Orlov , David Heidelberg Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v2 2/3] iio: light: Add support for AL3000a illuminance sensor Date: Sat, 15 Feb 2025 12:31:58 +0200 Message-ID: <20250215103159.106343-3-clamor95@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250215103159.106343-1-clamor95@gmail.com> References: <20250215103159.106343-1-clamor95@gmail.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 AL3000a is a simple I2C-based ambient light sensor, which is closely related to AL3010 and AL3320a, but has significantly different way of processing data generated by the sensor. Tested-by: Robert Eckelmann Signed-off-by: Svyatoslav Ryhel Reviewed-by: David Heidelberg --- drivers/iio/light/Kconfig | 10 ++ drivers/iio/light/Makefile | 1 + drivers/iio/light/al3000a.c | 221 ++++++++++++++++++++++++++++++++++++ 3 files changed, 232 insertions(+) create mode 100644 drivers/iio/light/al3000a.c diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index e34e551eef3e..142f7f7ef0ec 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -43,6 +43,16 @@ config ADUX1020 To compile this driver as a module, choose M here: the module will be called adux1020. +config AL3000A + tristate "AL3000a ambient light sensor" + depends on I2C + help + Say Y here if you want to build a driver for the Dyna Image AL3000a + ambient light sensor. + + To compile this driver as a module, choose M here: the + module will be called al3000a. + config AL3010 tristate "AL3010 ambient light sensor" depends on I2C diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index 11a4041b918a..17030a4cc340 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_ACPI_ALS) += acpi-als.o obj-$(CONFIG_ADJD_S311) += adjd_s311.o obj-$(CONFIG_ADUX1020) += adux1020.o +obj-$(CONFIG_AL3000A) += al3000a.o obj-$(CONFIG_AL3010) += al3010.o obj-$(CONFIG_AL3320A) += al3320a.o obj-$(CONFIG_APDS9300) += apds9300.o diff --git a/drivers/iio/light/al3000a.c b/drivers/iio/light/al3000a.c new file mode 100644 index 000000000000..58d4336dd081 --- /dev/null +++ b/drivers/iio/light/al3000a.c @@ -0,0 +1,221 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define AL3000A_DRV_NAME "al3000a" +#define AL3000A_REG_SYSTEM 0x00 +#define AL3000A_REG_DATA 0x05 + +#define AL3000A_CONFIG_ENABLE 0x00 +#define AL3000A_CONFIG_DISABLE 0x0b +#define AL3000A_CONFIG_RESET 0x0f +#define AL3000A_GAIN_MASK GENMASK(5, 0) + +/* + * This are pre-calculated lux values based on possible output of sensor + * (range 0x00 - 0x3F) + */ +static const u32 lux_table[] = { + 1, 1, 1, 2, 2, 2, 3, 4, /* 0 - 7 */ + 4, 5, 6, 7, 9, 11, 13, 16, /* 8 - 15 */ + 19, 22, 27, 32, 39, 46, 56, 67, /* 16 - 23 */ + 80, 96, 116, 139, 167, 200, 240, 289, /* 24 - 31 */ + 347, 416, 499, 600, 720, 864, 1037, 1245, /* 32 - 39 */ + 1495, 1795, 2155, 2587, 3105, 3728, 4475, 5373, /* 40 - 47 */ + 6450, 7743, 9296, 11160, 13397, 16084, 19309, 23180, /* 48 - 55 */ + 27828, 33408, 40107, 48148, 57803, 69393, 83306, 100000 /* 56 - 63 */ +}; + +static const struct regmap_config al3000a_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = AL3000A_REG_DATA, +}; + +struct al3000a_data { + struct regmap *regmap; + struct regulator *vdd_supply; +}; + +static const struct iio_chan_spec al3000a_channels[] = { + { + .type = IIO_LIGHT, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE), + }, +}; + +static int al3000a_set_pwr(struct al3000a_data *data, bool pwr) +{ + struct device *dev = regmap_get_device(data->regmap); + u8 val = pwr ? AL3000A_CONFIG_ENABLE : AL3000A_CONFIG_DISABLE; + int ret; + + if (pwr) { + ret = regulator_enable(data->vdd_supply); + if (ret < 0) { + dev_err(dev, "failed to enable vdd power supply\n"); + return ret; + } + } + + ret = regmap_write(data->regmap, AL3000A_REG_SYSTEM, val); + if (ret < 0) { + dev_err(dev, "failed to write system register\n"); + return ret; + } + + if (!pwr) { + ret = regulator_disable(data->vdd_supply); + if (ret < 0) { + dev_err(dev, "failed to disable vdd power supply\n"); + return ret; + } + } + + return 0; +} + +static void al3000a_set_pwr_off(void *_data) +{ + struct al3000a_data *data = _data; + + al3000a_set_pwr(data, false); +} + +static int al3000a_init(struct al3000a_data *data) +{ + int ret; + + ret = al3000a_set_pwr(data, true); + if (ret < 0) + return ret; + + ret = regmap_write(data->regmap, AL3000A_REG_SYSTEM, AL3000A_CONFIG_RESET); + if (ret < 0) + return ret; + + ret = regmap_write(data->regmap, AL3000A_REG_SYSTEM, AL3000A_CONFIG_ENABLE); + if (ret < 0) + return ret; + + return 0; +} + +static int al3000a_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int *val, + int *val2, long mask) +{ + struct al3000a_data *data = iio_priv(indio_dev); + int ret, gain; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = regmap_read(data->regmap, AL3000A_REG_DATA, &gain); + if (ret < 0) + return ret; + + *val = lux_table[gain & AL3000A_GAIN_MASK]; + + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + *val = 1; + + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + +static const struct iio_info al3000a_info = { + .read_raw = al3000a_read_raw, +}; + +static int al3000a_probe(struct i2c_client *client) +{ + struct al3000a_data *data; + struct device *dev = &client->dev; + struct iio_dev *indio_dev; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); + + data->regmap = devm_regmap_init_i2c(client, &al3000a_regmap_config); + if (IS_ERR(data->regmap)) + return dev_err_probe(dev, PTR_ERR(data->regmap), + "cannot allocate regmap\n"); + + data->vdd_supply = devm_regulator_get(dev, "vdd"); + if (IS_ERR(data->vdd_supply)) + return dev_err_probe(dev, PTR_ERR(data->vdd_supply), + "failed to get vdd regulator\n"); + + indio_dev->info = &al3000a_info; + indio_dev->name = AL3000A_DRV_NAME; + indio_dev->channels = al3000a_channels; + indio_dev->num_channels = ARRAY_SIZE(al3000a_channels); + indio_dev->modes = INDIO_DIRECT_MODE; + + ret = al3000a_init(data); + if (ret < 0) + return dev_err_probe(dev, ret, "failed to init ALS\n"); + + ret = devm_add_action_or_reset(dev, al3000a_set_pwr_off, data); + if (ret < 0) + return dev_err_probe(dev, ret, "failed to add action\n"); + + return devm_iio_device_register(dev, indio_dev); +} + +static int al3000a_suspend(struct device *dev) +{ + struct al3000a_data *data = iio_priv(dev_get_drvdata(dev)); + + return al3000a_set_pwr(data, false); +} + +static int al3000a_resume(struct device *dev) +{ + struct al3000a_data *data = iio_priv(dev_get_drvdata(dev)); + + return al3000a_set_pwr(data, true); +} + +static DEFINE_SIMPLE_DEV_PM_OPS(al3000a_pm_ops, al3000a_suspend, al3000a_resume); + +static const struct of_device_id al3000a_of_match[] = { + { .compatible = "dynaimage,al3000a" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, al3000a_of_match); + +static struct i2c_driver al3000a_driver = { + .driver = { + .name = AL3000A_DRV_NAME, + .of_match_table = al3000a_of_match, + .pm = pm_sleep_ptr(&al3000a_pm_ops), + }, + .probe = al3000a_probe, +}; +module_i2c_driver(al3000a_driver); + +MODULE_AUTHOR("Svyatolsav Ryhel "); +MODULE_DESCRIPTION("al3000a Ambient Light Sensor driver"); +MODULE_LICENSE("GPL"); From patchwork Sat Feb 15 10:31:59 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Svyatoslav Ryhel X-Patchwork-Id: 13976027 Received: from mail-lj1-f178.google.com (mail-lj1-f178.google.com [209.85.208.178]) (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 19C361A304A; 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([188.163.112.51]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-309298dc5eesm2201571fa.95.2025.02.15.02.32.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Feb 2025 02:32:29 -0800 (PST) From: Svyatoslav Ryhel To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter , Svyatoslav Ryhel , Javier Carrasco , Matti Vaittinen , Andy Shevchenko , Emil Gedenryd , Arthur Becker , Mudit Sharma , Per-Daniel Olsson , Subhajit Ghosh , Ivan Orlov , David Heidelberg Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v2 3/3] ARM: tegra: tf101: Add al3000a illuminance sensor node Date: Sat, 15 Feb 2025 12:31:59 +0200 Message-ID: <20250215103159.106343-4-clamor95@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250215103159.106343-1-clamor95@gmail.com> References: <20250215103159.106343-1-clamor95@gmail.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Bind al3000a illuminance sensor found in ASUS TF101 Tested-by: Robert Eckelmann Signed-off-by: Svyatoslav Ryhel --- arch/arm/boot/dts/nvidia/tegra20-asus-tf101.dts | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/nvidia/tegra20-asus-tf101.dts b/arch/arm/boot/dts/nvidia/tegra20-asus-tf101.dts index e118809dc6d9..67764afeb013 100644 --- a/arch/arm/boot/dts/nvidia/tegra20-asus-tf101.dts +++ b/arch/arm/boot/dts/nvidia/tegra20-asus-tf101.dts @@ -1085,6 +1085,17 @@ smart-battery@b { sbs,poll-retry-count = <10>; power-supplies = <&mains>; }; + + /* Dynaimage ambient light sensor */ + light-sensor@1c { + compatible = "dynaimage,al3000a"; + reg = <0x1c>; + + interrupt-parent = <&gpio>; + interrupts = ; + + vdd-supply = <&vdd_1v8_sys>; + }; }; };