projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 8987691a IPG |
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 | ||
| 35 | /* | |
| 36 | * Set the idle timeout (msecs) | |
| 37 | * | |
| 38 | * FIXME: eventually this should be a common WiMAX stack method, but | |
| 39 | * would like to wait to see how other devices manage it. | |
| 40 | */ | |
| 41 | static | |
| 42 | ssize_t i2400m_idle_timeout_store(struct device *dev, | |
| 43 | struct device_attribute *attr, | |
| 44 | const char *buf, size_t size) | |
| 45 | { | |
| 46 | ssize_t result; | |
| 47 | struct i2400m *i2400m = net_dev_to_i2400m(to_net_dev(dev)); | |
| 48 | unsigned val; | |
| 49 | ||
| 50 | result = -EINVAL; | |
| 51 | if (sscanf(buf, "%u\n", &val) != 1) | |
| 52 | goto error_no_unsigned; | |
| 53 | if (val != 0 && (val < 100 || val > 300000 || val % 100 != 0)) { | |
| 54 | dev_err(dev, "idle_timeout: %u: invalid msecs specification; " | |
| 55 | "valid values are 0, 100-300000 in 100 increments\n", | |
| 56 | val); | |
| 57 | goto error_bad_value; | |
| 58 | } | |
| 59 | result = i2400m_set_idle_timeout(i2400m, val); | |
| 60 | if (result >= 0) | |
| 61 | result = size; | |
| 62 | error_no_unsigned: | |
| 63 | error_bad_value: | |
| 64 | return result; | |
| 65 | } | |
| 66 | ||
| 67 | static | |
| 68 | DEVICE_ATTR(i2400m_idle_timeout, S_IWUSR, | |
| 69 | NULL, i2400m_idle_timeout_store); | |
| 70 | ||
| 71 | static | |
| 72 | struct attribute *i2400m_dev_attrs[] = { | |
| 73 | &dev_attr_i2400m_idle_timeout.attr, | |
| 74 | NULL, | |
| 75 | }; | |
| 76 | ||
| 77 | struct attribute_group i2400m_dev_attr_group = { | |
| 78 | .name = NULL, /* we want them in the same directory */ | |
| 79 | .attrs = i2400m_dev_attrs, | |
| 80 | }; |