working on multi led matrix driver

main.c

@@ -126,6 +126,31 @@ void max7219_ledMatrixUnsetLED(
 }
 
 
+// daysichained matrix
+typedef struct{
+	spi_ch_t *spiCH;
+	uint8_t nDevices;
+}max7219_dm_t;
+
+
+void max7219_dm_write(
+		max7219_dm_t *matrix,
+		uint8_t data[][])
+{
+	uint8_t i = 0;
+	uint8_t j = 0;
+	// TODO: Test it out
+	for(i = 0; i < 8; i++) {
+		pinWrite(matrix->spiCH->pin, 0);
+		for(j = 0; j < matrix->nDevices; j++) {
+			spiTrx8BitPolling(matrix->spiCH->spi, i+1); // reg
+			spiTrx8BitPolling(matrix->spiCH->spi, data[j][i]);
+		}
+		pinWrite(matrix->spiCH->pin, 1);
+
+	}
+}
+
 
 void dispTest(max7219_t *disp)
 {
@@ -135,7 +160,6 @@ void dispTest(max7219_t *disp)
 	delayMs(500);
 }
 
-
 void max7219_test_display(spi_ch_t* spi_ch)
 {
 	// set mode to display test
@@ -204,7 +228,7 @@ int main(int argc, char *argv[])
 		0xFF,
 		0xAA,
 		0xFF,
-		0xAA
+		0xAA,
 		0xFF,
 		0xAA};
 	spi_ch_t spi_test_channel;