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- #include <linux/device.h>
- #include <linux/module.h>
- #include <linux/string.h>
- #include <linux/pps_kernel.h>
- static ssize_t assert_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct pps_device *pps = dev_get_drvdata(dev);
- if (!(pps->info.mode & PPS_CAPTUREASSERT))
- return 0;
- return sprintf(buf, "%lld.%09d#%d\n",
- (long long) pps->assert_tu.sec, pps->assert_tu.nsec,
- pps->assert_sequence);
- }
- static DEVICE_ATTR_RO(assert);
- static ssize_t clear_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct pps_device *pps = dev_get_drvdata(dev);
- if (!(pps->info.mode & PPS_CAPTURECLEAR))
- return 0;
- return sprintf(buf, "%lld.%09d#%d\n",
- (long long) pps->clear_tu.sec, pps->clear_tu.nsec,
- pps->clear_sequence);
- }
- static DEVICE_ATTR_RO(clear);
- static ssize_t mode_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct pps_device *pps = dev_get_drvdata(dev);
- return sprintf(buf, "%4x\n", pps->info.mode);
- }
- static DEVICE_ATTR_RO(mode);
- static ssize_t echo_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct pps_device *pps = dev_get_drvdata(dev);
- return sprintf(buf, "%d\n", !!pps->info.echo);
- }
- static DEVICE_ATTR_RO(echo);
- static ssize_t name_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct pps_device *pps = dev_get_drvdata(dev);
- return sprintf(buf, "%s\n", pps->info.name);
- }
- static DEVICE_ATTR_RO(name);
- static ssize_t path_show(struct device *dev, struct device_attribute *attr,
- char *buf)
- {
- struct pps_device *pps = dev_get_drvdata(dev);
- return sprintf(buf, "%s\n", pps->info.path);
- }
- static DEVICE_ATTR_RO(path);
- static struct attribute *pps_attrs[] = {
- &dev_attr_assert.attr,
- &dev_attr_clear.attr,
- &dev_attr_mode.attr,
- &dev_attr_echo.attr,
- &dev_attr_name.attr,
- &dev_attr_path.attr,
- NULL,
- };
- static const struct attribute_group pps_group = {
- .attrs = pps_attrs,
- };
- const struct attribute_group *pps_groups[] = {
- &pps_group,
- NULL,
- };
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