1/* 2 * Intel Wireless WiMAX Connection 2400m 3 * Sysfs interfaces to show driver and device information 4 * 5 * 6 * Copyright (C) 2007 Intel Corporation <linux-wimax@intel.com> 7 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License version 11 * 2 as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 21 * 02110-1301, USA. 22 */ 23 24#include <linux/netdevice.h> 25#include <linux/etherdevice.h> 26#include <linux/spinlock.h> 27#include <linux/device.h> 28#include "i2400m.h" 29 30 31#define D_SUBMODULE sysfs 32#include "debug-levels.h" 33 34 35static 36ssize_t i2400m_idle_timeout_store(struct device *dev, 37 struct device_attribute *attr, 38 const char *buf, size_t size) 39{ 40 ssize_t result; 41 struct i2400m *i2400m = net_dev_to_i2400m(to_net_dev(dev)); 42 unsigned val; 43 44 result = -EINVAL; 45 if (sscanf(buf, "%u\n", &val) != 1) 46 goto error_no_unsigned; 47 if (val != 0 && (val < 100 || val > 300000 || val % 100 != 0)) { 48 dev_err(dev, "idle_timeout: %u: invalid msecs specification; " 49 "valid values are 0, 100-300000 in 100 increments\n", 50 val); 51 goto error_bad_value; 52 } 53 result = i2400m_set_idle_timeout(i2400m, val); 54 if (result >= 0) 55 result = size; 56error_no_unsigned: 57error_bad_value: 58 return result; 59} 60 61static 62DEVICE_ATTR(i2400m_idle_timeout, S_IWUSR, 63 NULL, i2400m_idle_timeout_store); 64 65static 66struct attribute *i2400m_dev_attrs[] = { 67 &dev_attr_i2400m_idle_timeout.attr, 68 NULL, 69}; 70 71struct attribute_group i2400m_dev_attr_group = { 72 .name = NULL, /* we want them in the same directory */ 73 .attrs = i2400m_dev_attrs, 74}; 75