static int __init msi_wmi_init(void)
{
int err;
int i;
for (i = 0; i < ARRAY_SIZE(event_wmis); i++) {
if (!wmi_has_guid(event_wmis[i].guid))
continue;
err = msi_wmi_input_setup();
if (err) {
pr_err("Unable to setup input device\n");
return err;
}
err = wmi_install_notify_handler(event_wmis[i].guid,
msi_wmi_notify, NULL);
if (ACPI_FAILURE(err)) {
pr_err("Unable to setup WMI notify handler\n");
goto err_free_input;
}
pr_debug("Event handler installed\n");
event_wmi = &event_wmis[i];
break;
}
if (wmi_has_guid(MSIWMI_BIOS_GUID) &&
acpi_video_get_backlight_type() == acpi_backlight_vendor) {
err = msi_wmi_backlight_setup();
if (err) {
pr_err("Unable to setup backlight device\n");
goto err_uninstall_handler;
}
pr_debug("Backlight device created\n");
}
if (!event_wmi && !backlight) {
pr_err("This machine doesn't have neither MSI-hotkeys nor backlight through WMI\n");
return -ENODEV;
}
return 0;
err_uninstall_handler:
if (event_wmi)
wmi_remove_notify_handler(event_wmi->guid);
err_free_input:
if (event_wmi)
input_unregister_device(msi_wmi_input_dev);
return err;
}
static int __init msi_wmi_init(void)
{
int err;
if (!wmi_has_guid(MSIWMI_EVENT_GUID)) {
pr_err("This machine doesn't have MSI-hotkeys through WMI\n");
return -ENODEV;
}
err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
msi_wmi_notify, NULL);
if (ACPI_FAILURE(err))
return -EINVAL;
err = msi_wmi_input_setup();
if (err)
goto err_uninstall_notifier;
if (!acpi_video_backlight_support()) {
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_PLATFORM;
props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
backlight = backlight_device_register(DRV_NAME, NULL, NULL,
&msi_backlight_ops,
&props);
if (IS_ERR(backlight)) {
err = PTR_ERR(backlight);
goto err_free_input;
}
err = bl_get(NULL);
if (err < 0)
goto err_free_backlight;
backlight->props.brightness = err;
}
pr_debug("Event handler installed\n");
return 0;
err_free_backlight:
backlight_device_unregister(backlight);
err_free_input:
sparse_keymap_free(msi_wmi_input_dev);
input_unregister_device(msi_wmi_input_dev);
err_uninstall_notifier:
wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
return err;
}
static int __init msi_wmi_init(void)
{
int err;
if (!wmi_has_guid(MSIWMI_EVENT_GUID)) {
printk(KERN_ERR
"This machine doesn't have MSI-hotkeys through WMI\n");
return -ENODEV;
}
err = wmi_install_notify_handler(MSIWMI_EVENT_GUID,
msi_wmi_notify, NULL);
if (err)
return -EINVAL;
err = msi_wmi_input_setup();
if (err)
goto err_uninstall_notifier;
if (!acpi_video_backlight_support()) {
backlight = backlight_device_register(DRV_NAME,
NULL, NULL, &msi_backlight_ops);
if (IS_ERR(backlight))
goto err_free_input;
backlight->props.max_brightness = ARRAY_SIZE(backlight_map) - 1;
err = bl_get(NULL);
if (err < 0)
goto err_free_backlight;
backlight->props.brightness = err;
}
dprintk("Event handler installed\n");
return 0;
err_free_backlight:
backlight_device_unregister(backlight);
err_free_input:
input_unregister_device(msi_wmi_input_dev);
err_uninstall_notifier:
wmi_remove_notify_handler(MSIWMI_EVENT_GUID);
return err;
}
