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https://git.kernel.org/pub/scm/libs/libgpiod/libgpiod.git
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a5ab76da1e
Add the D-Bus API definition and its implementation in the form of a GPIO manager daemon and a companion command-line client as well as some additional configuration and data files (systemd service, example udev configuration, etc.) and test suites. Tested-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Link: https://lore.kernel.org/r/20240812-dbus-v5-4-ead288509217@linaro.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
77 lines
2.0 KiB
C
77 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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// SPDX-FileCopyrightText: 2024 Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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#include <stdlib.h>
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#include "common.h"
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int gpiocli_reconfigure_main(int argc, char **argv)
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{
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static const gchar *const summary =
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"Change the line configuration for an existing request.";
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g_autoptr(GpiodbusObject) req_obj = NULL;
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g_autoptr(GVariant) line_config = NULL;
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g_autoptr(GArray) output_values = NULL;
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LineConfigOpts line_cfg_opts = { };
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g_autoptr(GArray) offsets = NULL;
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g_auto(GStrv) remaining = NULL;
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g_autoptr(GError) err = NULL;
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GpiodbusRequest *request;
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gsize num_values;
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gboolean ret;
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gint val;
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guint i;
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const GOptionEntry opts[] = {
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LINE_CONFIG_OPTIONS(&line_cfg_opts),
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{
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.long_name = G_OPTION_REMAINING,
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.flags = G_OPTION_FLAG_NONE,
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.arg = G_OPTION_ARG_STRING_ARRAY,
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.arg_data = &remaining,
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.arg_description = "<request> [value1] [value2]...",
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},
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{ }
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};
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parse_options(opts, summary, NULL, &argc, &argv);
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validate_line_config_opts(&line_cfg_opts);
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if (!remaining || g_strv_length(remaining) == 0)
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die_parsing_opts("Exactly one request to reconfigure must be specified.");
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num_values = g_strv_length(remaining) - 1;
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check_manager();
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req_obj = get_request_obj(remaining[0]);
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request = gpiodbus_object_peek_request(req_obj);
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offsets = get_request_offsets(request);
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if (num_values) {
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if (num_values != offsets->len)
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die_parsing_opts("The number of output values must correspond to the number of lines in the request");
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output_values = g_array_sized_new(FALSE, TRUE, sizeof(gint),
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num_values);
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for (i = 0; i < num_values; i++) {
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val = output_value_from_str(remaining[i + 1]);
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g_array_append_val(output_values, val);
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}
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}
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line_cfg_opts.output_values = output_values;
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line_config = make_line_config(offsets, &line_cfg_opts);
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ret = gpiodbus_request_call_reconfigure_lines_sync(
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request, line_config,
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G_DBUS_CALL_FLAGS_NONE,
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-1, NULL, &err);
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if (!ret)
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die_gerror(err, "Failed to reconfigure lines");
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return EXIT_SUCCESS;
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}
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