Tab5 features, StackChan, fixes, drivers.... (#526)

Drivers/py32ioexpander-module/include/bindings/py32ioexpander.h

@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#include <tactility/bindings/bindings.h>
+#include <drivers/py32ioexpander.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+DEFINE_DEVICETREE(py32ioexpander, struct Py32IoExpanderConfig)
+
+#ifdef __cplusplus
+}
+#endif

Drivers/py32ioexpander-module/include/drivers/py32ioexpander.h

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <tactility/error.h>
+
+struct Device;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct Py32IoExpanderConfig {
+    uint8_t address;
+};
+
+// ---------------------------------------------------------------------------
+// GPIO (16 pins, index 0–15)
+// ---------------------------------------------------------------------------
+error_t py32_gpio_set_output(struct Device* device, uint8_t pin, bool value);
+error_t py32_gpio_get_input(struct Device* device, uint8_t pin, bool* value);
+
+// ---------------------------------------------------------------------------
+// NeoPixel LED ring (up to 32 WS2812C LEDs)
+// ---------------------------------------------------------------------------
+error_t py32_led_set_count(struct Device* device, uint8_t count);
+error_t py32_led_set_color(struct Device* device, uint8_t index, uint8_t r, uint8_t g, uint8_t b);
+error_t py32_led_refresh(struct Device* device);
+error_t py32_led_disable(struct Device* device);
+
+#ifdef __cplusplus
+}
+#endif

Drivers/py32ioexpander-module/include/py32ioexpander_module.h

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+#include <tactility/module.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern struct Module py32ioexpander_module;
+
+#ifdef __cplusplus
+}
+#endif