From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Starikovskiy Subject: ACPI: Battery: Add alarm sysfs support Date: Fri, 17 Aug 2007 00:43:29 +0400 Message-ID: <46C4B6F1.9060301@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from ug-out-1314.google.com ([66.249.92.171]:51655 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752894AbXHPUne (ORCPT ); Thu, 16 Aug 2007 16:43:34 -0400 Received: by ug-out-1314.google.com with SMTP id j3so291904ugf for ; Thu, 16 Aug 2007 13:43:32 -0700 (PDT) Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Len Brown , ACPI Devel Maling List From: Alexey Starikovskiy Signed-off-by: Alexey Starikovskiy --- drivers/acpi/battery.c | 36 +++++++++++++++++++++++++++++++++++- 1 files changed, 35 insertions(+), 1 deletions(-) diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 2be9f45..3968d3b 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -697,6 +697,37 @@ static void acpi_battery_remove_fs(struct acpi_device *device) } #endif + +#ifdef ENABLE_POWER_SUPPLY + +static ssize_t acpi_battery_alarm_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); + return sprintf(buf, "%d\n", battery->alarm * 1000); +} + +static ssize_t acpi_battery_alarm_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + unsigned long x; + struct acpi_battery *battery = to_acpi_battery(dev_get_drvdata(dev)); + if (sscanf(buf, "%ld\n", &x) == 1) + battery->alarm = x/1000; + if (acpi_battery_present(battery)) + acpi_battery_set_alarm(battery); + return count; +} + +static struct device_attribute alarm_attr = { + .attr = {.name = "alarm", .mode = 0644, .owner = THIS_MODULE}, + .show = acpi_battery_alarm_show, + .store = acpi_battery_alarm_store, +}; + +#endif /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -740,6 +771,7 @@ static int acpi_battery_add(struct acpi_device *device) battery->bat.type = POWER_SUPPLY_TYPE_BATTERY; battery->bat.get_property = acpi_battery_get_property; result = power_supply_register(&battery->device->dev, &battery->bat); + result = device_create_file(battery->bat.dev, &alarm_attr); #endif status = acpi_install_notify_handler(device->handle, ACPI_ALL_NOTIFY, @@ -777,8 +809,10 @@ static int acpi_battery_remove(struct acpi_device *device, int type) acpi_battery_remove_fs(device); #endif #ifdef ENABLE_POWER_SUPPLY - if (battery->bat.dev) + if (battery->bat.dev) { + device_remove_file(battery->bat.dev, &alarm_attr); power_supply_unregister(&battery->bat); + } #endif mutex_destroy(&battery->lock); kfree(battery);