Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753226AbaFOUlM (ORCPT ); Sun, 15 Jun 2014 16:41:12 -0400 Received: from marmot.wormnet.eu ([188.246.204.87]:54903 "EHLO marmot.wormnet.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753049AbaFOUkN (ORCPT ); Sun, 15 Jun 2014 16:40:13 -0400 From: Jamie Lentin To: Jiri Kosina , Antonio Ospite Cc: Alexander Clouter , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, Jamie Lentin Subject: [PATCH v3 1/2] Rename hid-lenovo-tpkbd to hid-lenovo, so we can add other keyboards Date: Sun, 15 Jun 2014 21:39:49 +0100 Message-Id: <1402864790-7478-2-git-send-email-jm@lentin.co.uk> X-Mailer: git-send-email 2.0.0.rc2 In-Reply-To: <1402864790-7478-1-git-send-email-jm@lentin.co.uk> References: <1402864790-7478-1-git-send-email-jm@lentin.co.uk> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Jamie Lentin --- drivers/hid/Kconfig | 14 +- drivers/hid/Makefile | 2 +- drivers/hid/hid-core.c | 2 +- drivers/hid/{hid-lenovo-tpkbd.c => hid-lenovo.c} | 233 +++++++++++++---------- 4 files changed, 142 insertions(+), 109 deletions(-) rename drivers/hid/{hid-lenovo-tpkbd.c => hid-lenovo.c} (59%) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index f722001..dd07d59 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -322,18 +322,18 @@ config HID_LCPOWER ---help--- Support for LC-Power RC1000MCE RF remote control. -config HID_LENOVO_TPKBD - tristate "Lenovo ThinkPad USB Keyboard with TrackPoint" +config HID_LENOVO + tristate "Lenovo / Thinkpad devices" depends on HID select NEW_LEDS select LEDS_CLASS ---help--- - Support for the Lenovo ThinkPad USB Keyboard with TrackPoint. + Support for Lenovo devices that are not fully compliant with HID standard. - Say Y here if you have a Lenovo ThinkPad USB Keyboard with TrackPoint - and would like to use device-specific features like changing the - sensitivity of the trackpoint, using the microphone mute button or - controlling the mute and microphone mute LEDs. + Say Y if you want support for the non-compliant features of the Lenovo + Thinkpad standalone keyboards, e.g: + - ThinkPad USB Keyboard with TrackPoint (supports extra LEDs and trackpoint + configuration) config HID_LOGITECH tristate "Logitech devices" if EXPERT diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 30e4431..384f981 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -58,7 +58,7 @@ obj-$(CONFIG_HID_KENSINGTON) += hid-kensington.o obj-$(CONFIG_HID_KEYTOUCH) += hid-keytouch.o obj-$(CONFIG_HID_KYE) += hid-kye.o obj-$(CONFIG_HID_LCPOWER) += hid-lcpower.o -obj-$(CONFIG_HID_LENOVO_TPKBD) += hid-lenovo-tpkbd.o +obj-$(CONFIG_HID_LENOVO) += hid-lenovo.o obj-$(CONFIG_HID_LOGITECH) += hid-logitech.o obj-$(CONFIG_HID_LOGITECH_DJ) += hid-logitech-dj.o obj-$(CONFIG_HID_MAGICMOUSE) += hid-magicmouse.o diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 8a5384c..e8ce932 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1736,7 +1736,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) }, { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) }, -#if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD) +#if IS_ENABLED(CONFIG_HID_LENOVO) { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) }, #endif { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, diff --git a/drivers/hid/hid-lenovo-tpkbd.c b/drivers/hid/hid-lenovo.c similarity index 59% rename from drivers/hid/hid-lenovo-tpkbd.c rename to drivers/hid/hid-lenovo.c index 2d25b6c..aabf084 100644 --- a/drivers/hid/hid-lenovo-tpkbd.c +++ b/drivers/hid/hid-lenovo.c @@ -1,5 +1,6 @@ /* - * HID driver for Lenovo ThinkPad USB Keyboard with TrackPoint + * HID driver for Lenovo:- + * - ThinkPad USB Keyboard with TrackPoint (tpkbd) * * Copyright (c) 2012 Bernhard Seibold */ @@ -20,8 +21,7 @@ #include "hid-ids.h" -/* This is only used for the trackpoint part of the driver, hence _tp */ -struct tpkbd_data_pointer { +struct lenovo_drvdata_tpkbd { int led_state; struct led_classdev led_mute; struct led_classdev led_micmute; @@ -35,7 +35,7 @@ struct tpkbd_data_pointer { #define map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, (c)) -static int tpkbd_input_mapping(struct hid_device *hdev, +static int lenovo_input_mapping_tpkbd(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { @@ -48,12 +48,26 @@ static int tpkbd_input_mapping(struct hid_device *hdev, return 0; } +static int lenovo_input_mapping(struct hid_device *hdev, + struct hid_input *hi, struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, int *max) +{ + switch (hdev->product) { + case USB_DEVICE_ID_LENOVO_TPKBD: + return lenovo_input_mapping_tpkbd(hdev, hi, field, + usage, bit, max); + break; + } + + return 0; +} + #undef map_key_clear -static int tpkbd_features_set(struct hid_device *hdev) +static int lenovo_features_set_tpkbd(struct hid_device *hdev) { struct hid_report *report; - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); report = hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[4]; @@ -69,23 +83,23 @@ static int tpkbd_features_set(struct hid_device *hdev) return 0; } -static ssize_t pointer_press_to_select_show(struct device *dev, +static ssize_t attr_press_to_select_show_tpkbd(struct device *dev, struct device_attribute *attr, char *buf) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_to_select); } -static ssize_t pointer_press_to_select_store(struct device *dev, +static ssize_t attr_press_to_select_store_tpkbd(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); int value; if (kstrtoint(buf, 10, &value)) @@ -94,28 +108,28 @@ static ssize_t pointer_press_to_select_store(struct device *dev, return -EINVAL; data_pointer->press_to_select = value; - tpkbd_features_set(hdev); + lenovo_features_set_tpkbd(hdev); return count; } -static ssize_t pointer_dragging_show(struct device *dev, +static ssize_t attr_dragging_show_tpkbd(struct device *dev, struct device_attribute *attr, char *buf) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->dragging); } -static ssize_t pointer_dragging_store(struct device *dev, +static ssize_t attr_dragging_store_tpkbd(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); int value; if (kstrtoint(buf, 10, &value)) @@ -124,28 +138,28 @@ static ssize_t pointer_dragging_store(struct device *dev, return -EINVAL; data_pointer->dragging = value; - tpkbd_features_set(hdev); + lenovo_features_set_tpkbd(hdev); return count; } -static ssize_t pointer_release_to_select_show(struct device *dev, +static ssize_t attr_release_to_select_show_tpkbd(struct device *dev, struct device_attribute *attr, char *buf) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->release_to_select); } -static ssize_t pointer_release_to_select_store(struct device *dev, +static ssize_t attr_release_to_select_store_tpkbd(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); int value; if (kstrtoint(buf, 10, &value)) @@ -154,28 +168,28 @@ static ssize_t pointer_release_to_select_store(struct device *dev, return -EINVAL; data_pointer->release_to_select = value; - tpkbd_features_set(hdev); + lenovo_features_set_tpkbd(hdev); return count; } -static ssize_t pointer_select_right_show(struct device *dev, +static ssize_t attr_select_right_show_tpkbd(struct device *dev, struct device_attribute *attr, char *buf) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->select_right); } -static ssize_t pointer_select_right_store(struct device *dev, +static ssize_t attr_select_right_store_tpkbd(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); int value; if (kstrtoint(buf, 10, &value)) @@ -184,119 +198,119 @@ static ssize_t pointer_select_right_store(struct device *dev, return -EINVAL; data_pointer->select_right = value; - tpkbd_features_set(hdev); + lenovo_features_set_tpkbd(hdev); return count; } -static ssize_t pointer_sensitivity_show(struct device *dev, +static ssize_t attr_sensitivity_show_tpkbd(struct device *dev, struct device_attribute *attr, char *buf) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->sensitivity); } -static ssize_t pointer_sensitivity_store(struct device *dev, +static ssize_t attr_sensitivity_store_tpkbd(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); int value; if (kstrtoint(buf, 10, &value) || value < 1 || value > 255) return -EINVAL; data_pointer->sensitivity = value; - tpkbd_features_set(hdev); + lenovo_features_set_tpkbd(hdev); return count; } -static ssize_t pointer_press_speed_show(struct device *dev, +static ssize_t attr_press_speed_show_tpkbd(struct device *dev, struct device_attribute *attr, char *buf) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); return snprintf(buf, PAGE_SIZE, "%u\n", data_pointer->press_speed); } -static ssize_t pointer_press_speed_store(struct device *dev, +static ssize_t attr_press_speed_store_tpkbd(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); int value; if (kstrtoint(buf, 10, &value) || value < 1 || value > 255) return -EINVAL; data_pointer->press_speed = value; - tpkbd_features_set(hdev); + lenovo_features_set_tpkbd(hdev); return count; } -static struct device_attribute dev_attr_pointer_press_to_select = +static struct device_attribute dev_attr_press_to_select_tpkbd = __ATTR(press_to_select, S_IWUSR | S_IRUGO, - pointer_press_to_select_show, - pointer_press_to_select_store); + attr_press_to_select_show_tpkbd, + attr_press_to_select_store_tpkbd); -static struct device_attribute dev_attr_pointer_dragging = +static struct device_attribute dev_attr_dragging_tpkbd = __ATTR(dragging, S_IWUSR | S_IRUGO, - pointer_dragging_show, - pointer_dragging_store); + attr_dragging_show_tpkbd, + attr_dragging_store_tpkbd); -static struct device_attribute dev_attr_pointer_release_to_select = +static struct device_attribute dev_attr_release_to_select_tpkbd = __ATTR(release_to_select, S_IWUSR | S_IRUGO, - pointer_release_to_select_show, - pointer_release_to_select_store); + attr_release_to_select_show_tpkbd, + attr_release_to_select_store_tpkbd); -static struct device_attribute dev_attr_pointer_select_right = +static struct device_attribute dev_attr_select_right_tpkbd = __ATTR(select_right, S_IWUSR | S_IRUGO, - pointer_select_right_show, - pointer_select_right_store); + attr_select_right_show_tpkbd, + attr_select_right_store_tpkbd); -static struct device_attribute dev_attr_pointer_sensitivity = +static struct device_attribute dev_attr_sensitivity_tpkbd = __ATTR(sensitivity, S_IWUSR | S_IRUGO, - pointer_sensitivity_show, - pointer_sensitivity_store); + attr_sensitivity_show_tpkbd, + attr_sensitivity_store_tpkbd); -static struct device_attribute dev_attr_pointer_press_speed = +static struct device_attribute dev_attr_press_speed_tpkbd = __ATTR(press_speed, S_IWUSR | S_IRUGO, - pointer_press_speed_show, - pointer_press_speed_store); - -static struct attribute *tpkbd_attributes_pointer[] = { - &dev_attr_pointer_press_to_select.attr, - &dev_attr_pointer_dragging.attr, - &dev_attr_pointer_release_to_select.attr, - &dev_attr_pointer_select_right.attr, - &dev_attr_pointer_sensitivity.attr, - &dev_attr_pointer_press_speed.attr, + attr_press_speed_show_tpkbd, + attr_press_speed_store_tpkbd); + +static struct attribute *lenovo_attributes_tpkbd[] = { + &dev_attr_press_to_select_tpkbd.attr, + &dev_attr_dragging_tpkbd.attr, + &dev_attr_release_to_select_tpkbd.attr, + &dev_attr_select_right_tpkbd.attr, + &dev_attr_sensitivity_tpkbd.attr, + &dev_attr_press_speed_tpkbd.attr, NULL }; -static const struct attribute_group tpkbd_attr_group_pointer = { - .attrs = tpkbd_attributes_pointer, +static const struct attribute_group lenovo_attr_group_tpkbd = { + .attrs = lenovo_attributes_tpkbd, }; -static enum led_brightness tpkbd_led_brightness_get( +static enum led_brightness lenovo_led_brightness_get_tpkbd( struct led_classdev *led_cdev) { struct device *dev = led_cdev->dev->parent; struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); int led_nr = 0; if (led_cdev == &data_pointer->led_micmute) @@ -307,12 +321,12 @@ static enum led_brightness tpkbd_led_brightness_get( : LED_OFF; } -static void tpkbd_led_brightness_set(struct led_classdev *led_cdev, +static void lenovo_led_brightness_set_tpkbd(struct led_classdev *led_cdev, enum led_brightness value) { struct device *dev = led_cdev->dev->parent; struct hid_device *hdev = container_of(dev, struct hid_device, dev); - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); struct hid_report *report; int led_nr = 0; @@ -330,13 +344,24 @@ static void tpkbd_led_brightness_set(struct led_classdev *led_cdev, hid_hw_request(hdev, report, HID_REQ_SET_REPORT); } -static int tpkbd_probe_tp(struct hid_device *hdev) +static int lenovo_probe_tpkbd(struct hid_device *hdev, + const struct hid_device_id *id) { struct device *dev = &hdev->dev; - struct tpkbd_data_pointer *data_pointer; + struct lenovo_drvdata_tpkbd *data_pointer; size_t name_sz = strlen(dev_name(dev)) + 16; char *name_mute, *name_micmute; - int i; + int i, ret; + + /* + * If this is the pointer half of the keyboard, input_mapping should + * have set drvdata to 1. Otherwise, it's the keyboard which needs + * nothing special doing to it. + */ + if (!hid_get_drvdata(hdev)) + return 0; + + hid_set_drvdata(hdev, NULL); /* Validate required reports. */ for (i = 0; i < 4; i++) { @@ -346,13 +371,12 @@ static int tpkbd_probe_tp(struct hid_device *hdev) if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2)) return -ENODEV; - if (sysfs_create_group(&hdev->dev.kobj, - &tpkbd_attr_group_pointer)) { + ret = sysfs_create_group(&hdev->dev.kobj, &lenovo_attr_group_tpkbd); + if (ret) hid_warn(hdev, "Could not create sysfs group\n"); - } data_pointer = devm_kzalloc(&hdev->dev, - sizeof(struct tpkbd_data_pointer), + sizeof(struct lenovo_drvdata_tpkbd), GFP_KERNEL); if (data_pointer == NULL) { hid_err(hdev, "Could not allocate memory for driver data\n"); @@ -375,23 +399,25 @@ static int tpkbd_probe_tp(struct hid_device *hdev) hid_set_drvdata(hdev, data_pointer); data_pointer->led_mute.name = name_mute; - data_pointer->led_mute.brightness_get = tpkbd_led_brightness_get; - data_pointer->led_mute.brightness_set = tpkbd_led_brightness_set; + data_pointer->led_mute.brightness_get = lenovo_led_brightness_get_tpkbd; + data_pointer->led_mute.brightness_set = lenovo_led_brightness_set_tpkbd; data_pointer->led_mute.dev = dev; led_classdev_register(dev, &data_pointer->led_mute); data_pointer->led_micmute.name = name_micmute; - data_pointer->led_micmute.brightness_get = tpkbd_led_brightness_get; - data_pointer->led_micmute.brightness_set = tpkbd_led_brightness_set; + data_pointer->led_micmute.brightness_get = + lenovo_led_brightness_get_tpkbd; + data_pointer->led_micmute.brightness_set = + lenovo_led_brightness_set_tpkbd; data_pointer->led_micmute.dev = dev; led_classdev_register(dev, &data_pointer->led_micmute); - tpkbd_features_set(hdev); + lenovo_features_set_tpkbd(hdev); return 0; } -static int tpkbd_probe(struct hid_device *hdev, +static int lenovo_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; @@ -408,12 +434,13 @@ static int tpkbd_probe(struct hid_device *hdev, goto err; } - if (hid_get_drvdata(hdev)) { - hid_set_drvdata(hdev, NULL); - ret = tpkbd_probe_tp(hdev); - if (ret) - goto err_hid; + switch (hdev->product) { + case USB_DEVICE_ID_LENOVO_TPKBD: + ret = lenovo_probe_tpkbd(hdev, id); + break; } + if (ret) + goto err_hid; return 0; err_hid: @@ -422,12 +449,15 @@ err: return ret; } -static void tpkbd_remove_tp(struct hid_device *hdev) +static void lenovo_remove_tpkbd(struct hid_device *hdev) { - struct tpkbd_data_pointer *data_pointer = hid_get_drvdata(hdev); + struct lenovo_drvdata_tpkbd *data_pointer = hid_get_drvdata(hdev); sysfs_remove_group(&hdev->dev.kobj, - &tpkbd_attr_group_pointer); + &lenovo_attr_group_tpkbd); + + if (data_pointer == NULL) + return; led_classdev_unregister(&data_pointer->led_micmute); led_classdev_unregister(&data_pointer->led_mute); @@ -435,28 +465,31 @@ static void tpkbd_remove_tp(struct hid_device *hdev) hid_set_drvdata(hdev, NULL); } -static void tpkbd_remove(struct hid_device *hdev) +static void lenovo_remove(struct hid_device *hdev) { - if (hid_get_drvdata(hdev)) - tpkbd_remove_tp(hdev); + switch (hdev->product) { + case USB_DEVICE_ID_LENOVO_TPKBD: + lenovo_remove_tpkbd(hdev); + break; + } hid_hw_stop(hdev); } -static const struct hid_device_id tpkbd_devices[] = { +static const struct hid_device_id lenovo_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) }, { } }; -MODULE_DEVICE_TABLE(hid, tpkbd_devices); +MODULE_DEVICE_TABLE(hid, lenovo_devices); -static struct hid_driver tpkbd_driver = { +static struct hid_driver lenovo_driver = { .name = "lenovo_tpkbd", - .id_table = tpkbd_devices, - .input_mapping = tpkbd_input_mapping, - .probe = tpkbd_probe, - .remove = tpkbd_remove, + .id_table = lenovo_devices, + .input_mapping = lenovo_input_mapping, + .probe = lenovo_probe, + .remove = lenovo_remove, }; -module_hid_driver(tpkbd_driver); +module_hid_driver(lenovo_driver); MODULE_LICENSE("GPL"); -- 2.0.0.rc2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/