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// SPDX-License-Identifier: GPL-2.0 #include <linux/kernel.h> #include <linux/stat.h> /* FIX UP */ #include "soundbus.h" #define soundbus_config_of_attr(field, format_string) \ static ssize_t \ field##_show (struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ struct soundbus_dev *mdev = to_soundbus_device (dev); \ return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \ } static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { struct soundbus_dev *sdev = to_soundbus_device(dev); struct platform_device *of = &sdev->ofdev; int length; if (*sdev->modalias) { strlcpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1); strcat(buf, "\n"); length = strlen(buf); } else { length = sprintf(buf, "of:N%sT%s\n", of->dev.of_node->name, of->dev.of_node->type); } return length; } static DEVICE_ATTR_RO(modalias); soundbus_config_of_attr (name, "%s\n"); static DEVICE_ATTR_RO(name); soundbus_config_of_attr (type, "%s\n"); static DEVICE_ATTR_RO(type); struct attribute *soundbus_dev_attrs[] = { &dev_attr_name.attr, &dev_attr_type.attr, &dev_attr_modalias.attr, NULL, }; |