Add user pointer to indev driver for state storage between read() calls

2018-02-20 13:25:36 +00:00
parent 88096cbbfe
commit fada3aabfa
2 changed files with 4 additions and 0 deletions
--- a/lv_hal/lv_hal_indev.c
+++ b/lv_hal/lv_hal_indev.c
@@ -46,6 +46,7 @@ void lv_indev_drv_init(lv_indev_drv_t *driver)
 {
    driver->read = NULL;
    driver->type = LV_INDEV_TYPE_NONE;
+    driver->priv = NULL;
 }

 /**
@@ -107,6 +108,7 @@ bool lv_indev_read(lv_indev_t * indev, lv_indev_data_t *data)
    bool cont = false;

    if(indev->driver.read) {
+        data->priv = indev->driver.priv;
        cont = indev->driver.read(data);
    } else {
        memset(data, 0, sizeof(lv_indev_data_t));