/* * PPS sysfs support * * * Copyright (C) 2007-2009   Rodolfo Giometti <giometti@linux.it> * *   This program is free software; you can redistribute it and/or modify *   it under the terms of the GNU General Public License as published by *   the Free Software Foundation; either version 2 of the License, or *   (at your option) any later version. * *   This program is distributed in the hope that it will be useful, *   but WITHOUT ANY WARRANTY; without even the implied warranty of *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *   GNU General Public License for more details. * *   You should have received a copy of the GNU General Public License *   along with this program; if not, write to the Free Software *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */  #include <linux/device.h>#include <linux/module.h>#include <linux/string.h>#include <linux/pps_kernel.h> /* * Attribute functions */ static ssize_t pps_show_assert(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 ssize_t pps_show_clear(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 ssize_t pps_show_mode(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 ssize_t pps_show_echo(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 ssize_t pps_show_name(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 ssize_t pps_show_path(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);} struct device_attribute pps_attrs[] = {	__ATTR(assert, S_IRUGO, pps_show_assert, NULL),	__ATTR(clear, S_IRUGO, pps_show_clear, NULL),	__ATTR(mode, S_IRUGO, pps_show_mode, NULL),	__ATTR(echo, S_IRUGO, pps_show_echo, NULL),	__ATTR(name, S_IRUGO, pps_show_name, NULL),	__ATTR(path, S_IRUGO, pps_show_path, NULL),	__ATTR_NULL,};