adjusted

Author: mkalkbrenner

src/ZeDMDSpi.h

@@ -9,9 +9,15 @@
 #include "ZeDMDComm.h"
 
 #if defined(SPI_SUPPORT)
+#include <gpiod.h>
 #include <linux/spi/spidev.h>
 
+#define GPIO_CHIP "/dev/gpiochip0"
 #define SPI_DEVICE "/dev/spidev1.0"
+#else
+// Forward declarations so non-Linux builds can compile the stub implementation.
+struct gpiod_chip;
+struct gpiod_line;
 #endif
 
 class ZeDMDSpi : public ZeDMDComm
@@ -46,5 +52,9 @@ class ZeDMDSpi : public ZeDMDComm
   uint32_t m_speed = 72000000;  // 72MHz
   uint8_t m_framePause = 0;     // 0ms
   int m_fileDescriptor = -1;
+#if defined(SPI_SUPPORT)
+  gpiod_chip* m_gpioChip = nullptr;
+  gpiod_line* m_csLine = nullptr;
+#endif
   bool m_connected = false;
 };