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classmate-laptop: always call input_sync() after input_report_switch() 

Due to commit cdda911c34 evdev only
becomes readable when the buffer contains an EV_SYN/SYN_REPORT event.

So in order to read the tablet sensor data as it happens we need to
ensure that we always call input_sync() after input_report_switch()

Signed-off-by: Carlos Alberto Lopez Perez <clopez@igalia.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Carlos Alberto Lopez Perez 2012-08-02 19:50:21 +02:00 committed by Matthew Garrett
parent a4f46bb9fa
commit ad20c73b05
1 changed files with 9 additions and 3 deletions
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12
drivers/platform/x86/classmate-laptop.c
View File

@ -725,8 +725,10 @@ static void cmpc_tablet_handler(struct acpi_device *dev, u32 event)
struct input_dev *inputdev = dev_get_drvdata(&dev->dev); struct input_dev *inputdev = dev_get_drvdata(&dev->dev);
if (event == 0x81) { if (event == 0x81) {
if (ACPI_SUCCESS(cmpc_get_tablet(dev->handle, &val))) if (ACPI_SUCCESS(cmpc_get_tablet(dev->handle, &val))) {
input_report_switch(inputdev, SW_TABLET_MODE, !val); input_report_switch(inputdev, SW_TABLET_MODE, !val);
input_sync(inputdev);
}
} }
} }
@ -739,8 +741,10 @@ static void cmpc_tablet_idev_init(struct input_dev *inputdev)
set_bit(SW_TABLET_MODE, inputdev->swbit); set_bit(SW_TABLET_MODE, inputdev->swbit);
acpi = to_acpi_device(inputdev->dev.parent); acpi = to_acpi_device(inputdev->dev.parent);
if (ACPI_SUCCESS(cmpc_get_tablet(acpi->handle, &val))) if (ACPI_SUCCESS(cmpc_get_tablet(acpi->handle, &val))) {
input_report_switch(inputdev, SW_TABLET_MODE, !val); input_report_switch(inputdev, SW_TABLET_MODE, !val);
input_sync(inputdev);
}
} }
static int cmpc_tablet_add(struct acpi_device *acpi) static int cmpc_tablet_add(struct acpi_device *acpi)
@ -760,8 +764,10 @@ static int cmpc_tablet_resume(struct device *dev)
struct input_dev *inputdev = dev_get_drvdata(dev); struct input_dev *inputdev = dev_get_drvdata(dev);
unsigned long long val = 0; unsigned long long val = 0;
if (ACPI_SUCCESS(cmpc_get_tablet(to_acpi_device(dev)->handle, &val))) if (ACPI_SUCCESS(cmpc_get_tablet(to_acpi_device(dev)->handle, &val))) {
input_report_switch(inputdev, SW_TABLET_MODE, !val); input_report_switch(inputdev, SW_TABLET_MODE, !val);
input_sync(inputdev);
}
return 0; return 0;
} }
#endif #endif