Disable SPI CS when it isn't used (#1538)

Co-authored-by: N Christian Ewald <vfr750rc24-bitbucket@yahoo.com>

Disable SPI CS when it isn't used (#1538)
Co-authored-by: N Christian Ewald <vfr750rc24-bitbucket@yahoo.com>
57c9cb29 · Christian Ewald · GitHub · 1ab3e3b7 · 57c9cb29
隐藏空白更改
内联并排

Showing with 5 addition and 1 deletion

src/System.Device.Gpio/System/Device/Spi/Devices/UnixSpiDevice.cs ...em.Device.Gpio/System/Device/Spi/Devices/UnixSpiDevice.cs +5 -1

未找到文件。
--- a/src/System.Device.Gpio/System/Device/Spi/Devices/UnixSpiDevice.cs
+++ b/src/System.Device.Gpio/System/Device/Spi/Devices/UnixSpiDevice.cs
@@ -118,7 +118,11 @@ namespace System.Device.Spi
        {
            UnixSpiMode mode = SpiModeToUnixSpiMode(_settings.Mode);

-            if (_settings.ChipSelectLineActiveState == PinValue.High)
+            if (_settings.ChipSelectLine == -1)
+            {
+                mode |= UnixSpiMode.SPI_NO_CS;
+            }
+            else if (_settings.ChipSelectLineActiveState == PinValue.High)
            {
                mode |= UnixSpiMode.SPI_CS_HIGH;
            }