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Viewing changes to drivers/macintosh/macio_sysfs.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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drivers/macintosh/macio_sysfs.c
 
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#include <linux/kernel.h>
 
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#include <linux/stat.h>
 
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#include <asm/macio.h>
 
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#define macio_config_of_attr(field, format_string)                      \
 
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static ssize_t                                                          \
 
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field##_show (struct device *dev, struct device_attribute *attr,        \
 
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              char *buf)                                                \
 
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{                                                                       \
 
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        struct macio_dev *mdev = to_macio_device (dev);                 \
 
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        return sprintf (buf, format_string, mdev->ofdev.dev.of_node->field); \
 
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}
 
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static ssize_t
 
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compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
 
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{
 
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        struct platform_device *of;
 
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        const char *compat;
 
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        int cplen;
 
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        int length = 0;
 
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        of = &to_macio_device (dev)->ofdev;
 
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        compat = of_get_property(of->dev.of_node, "compatible", &cplen);
 
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        if (!compat) {
 
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                *buf = '\0';
 
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                return 0;
 
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        }
 
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        while (cplen > 0) {
 
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                int l;
 
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                length += sprintf (buf, "%s\n", compat);
 
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                buf += length;
 
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                l = strlen (compat) + 1;
 
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                compat += l;
 
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                cplen -= l;
 
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        }
 
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        return length;
 
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}
 
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static ssize_t modalias_show (struct device *dev, struct device_attribute *attr,
 
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                              char *buf)
 
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{
 
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        int len = of_device_get_modalias(dev, buf, PAGE_SIZE - 2);
 
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        buf[len] = '\n';
 
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        buf[len+1] = 0;
 
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        return len+1;
 
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}
 
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static ssize_t devspec_show(struct device *dev,
 
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                                struct device_attribute *attr, char *buf)
 
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{
 
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        struct platform_device *ofdev;
 
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        ofdev = to_platform_device(dev);
 
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        return sprintf(buf, "%s\n", ofdev->dev.of_node->full_name);
 
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}
 
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macio_config_of_attr (name, "%s\n");
 
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macio_config_of_attr (type, "%s\n");
 
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struct device_attribute macio_dev_attrs[] = {
 
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        __ATTR_RO(name),
 
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        __ATTR_RO(type),
 
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        __ATTR_RO(compatible),
 
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        __ATTR_RO(modalias),
 
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        __ATTR_RO(devspec),
 
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        __ATTR_NULL
 
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};