Guido Günther
a5b4f99412
Currently all LED feedbacks are infinite we can improve that later on by using the 'repeat' attribute of the LED pattern trigger.
87 lines
2.1 KiB
C
87 lines
2.1 KiB
C
/*
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* Copyright (C) 2020 Purism SPC
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* SPDX-License-Identifier: GPL-3.0+
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* Author: Guido Günther <agx@sigxcpu.org>
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*
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*/
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#define G_LOG_DOMAIN "fbd-udev"
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#include "fbd-udev.h"
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#include <gio/gio.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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gboolean
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fbd_udev_set_sysfs_path_attr_as_string (GUdevDevice *dev, const gchar *attr,
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const gchar *s, GError **err)
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{
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gint fd;
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int len;
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g_autofree gchar *path = g_strjoin ("/", g_udev_device_get_sysfs_path (dev),
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attr, NULL);
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fd = open (path, O_WRONLY|O_TRUNC, 0666);
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if (fd < 0) {
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g_set_error (err, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to open %s: %s",
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path, strerror (errno));
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return FALSE;
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}
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len = strlen (s);
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if (write (fd, s, len) < 0) {
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g_set_error (err, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to write %s to %s: %s",
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s, path, strerror (errno));
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close (fd);
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return FALSE;
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}
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if (close (fd) < 0) {
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g_set_error (err, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to close %s: %s",
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path, strerror (errno));
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return FALSE;
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}
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return TRUE;
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}
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gboolean
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fbd_udev_set_sysfs_path_attr_as_int (GUdevDevice *dev, const gchar *attr,
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gint val, GError **err)
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{
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gint fd;
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int len;
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g_autofree gchar *s = NULL;
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g_autofree gchar *path = g_strjoin ("/", g_udev_device_get_sysfs_path (dev),
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attr, NULL);
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fd = open (path, O_WRONLY|O_TRUNC, 0666);
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if (fd < 0) {
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g_set_error (err, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to open %s: %s",
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path, strerror (errno));
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return FALSE;
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}
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s = g_strdup_printf ("%d", val);
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len = strlen (s);
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if (write (fd, s, len) < len) {
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g_set_error (err, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to write %s: %s",
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path, strerror (errno));
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close (fd);
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return FALSE;
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}
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if (close (fd) < 0) {
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g_set_error (err, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to close %s: %s",
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path, strerror (errno));
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return FALSE;
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}
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return TRUE;
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}
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