1 #include <linux/kernel.h> 2 #include <linux/stat.h> 3 /* FIX UP */ 4 #include "soundbus.h" 5 6 #define soundbus_config_of_attr(field, format_string) \ 7 static ssize_t \ 8 field##_show (struct device *dev, struct device_attribute *attr, \ 9 char *buf) \ 10 { \ 11 struct soundbus_dev *mdev = to_soundbus_device (dev); \ 12 return sprintf (buf, format_string, mdev->ofdev.node->field); \ 13 } 14 15 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, 16 char *buf) 17 { 18 struct soundbus_dev *sdev = to_soundbus_device(dev); 19 struct of_device *of = &sdev->ofdev; 20 int length; 21 22 if (*sdev->modalias) { 23 strlcpy(buf, sdev->modalias, sizeof(sdev->modalias) + 1); 24 strcat(buf, "\n"); 25 length = strlen(buf); 26 } else { 27 length = sprintf(buf, "of:N%sT%s\n", 28 of->node->name, of->node->type); 29 } 30 31 return length; 32 } 33 34 soundbus_config_of_attr (name, "%s\n"); 35 soundbus_config_of_attr (type, "%s\n"); 36 37 struct device_attribute soundbus_dev_attrs[] = { 38 __ATTR_RO(name), 39 __ATTR_RO(type), 40 __ATTR_RO(modalias), 41 __ATTR_NULL 42 }; 43