// SPDX-License-Identifier: GPL-2.0-only /* * Intel Wireless WiMAX Connection 2400m * Sysfs interfaces to show driver and device information * * Copyright (C) 2007 Intel Corporation <linux-wimax@intel.com> * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> */ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/spinlock.h> #include <linux/device.h> #include "i2400m.h" #define D_SUBMODULE sysfs #include "debug-levels.h" /* * Set the idle timeout (msecs) * * FIXME: eventually this should be a common WiMAX stack method, but * would like to wait to see how other devices manage it. */ static ssize_t i2400m_idle_timeout_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { ssize_t result; struct i2400m *i2400m = net_dev_to_i2400m(to_net_dev(dev)); unsigned val; result = -EINVAL; if (sscanf(buf, "%u\n", &val) != 1) goto error_no_unsigned; if (val != 0 && (val < 100 || val > 300000 || val % 100 != 0)) { dev_err(dev, "idle_timeout: %u: invalid msecs specification; " "valid values are 0, 100-300000 in 100 increments\n", val); goto error_bad_value; } result = i2400m_set_idle_timeout(i2400m, val); if (result >= 0) result = size; error_no_unsigned: error_bad_value: return result; } static DEVICE_ATTR_WO(i2400m_idle_timeout); static struct attribute *i2400m_dev_attrs[] = { &dev_attr_i2400m_idle_timeout.attr, NULL, }; struct attribute_group i2400m_dev_attr_group = { .name = NULL, /* we want them in the same directory */ .attrs = i2400m_dev_attrs, };