# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1698161758 -7200
# Node ID 53c6e7c8a7ac28a7a6439f6ab11065db079c708c
# Parent  494ab106b785fc216c495518e43b5f413e7e7d1a
Adjusted the buffer types for improved interoperability.

diff -r 494ab106b785 -r 53c6e7c8a7ac pkg/devices/lib/spi/include/spi-gpio.h
--- a/pkg/devices/lib/spi/include/spi-gpio.h	Sun Oct 15 22:24:25 2023 +0200
+++ b/pkg/devices/lib/spi/include/spi-gpio.h	Tue Oct 24 17:35:58 2023 +0200
@@ -48,7 +48,7 @@
                     Hw::Gpio_chip *enable_device, int enable_pin,
                     uint32_t frequency = 0);
 
-  void send(int bytes, uint8_t data[]);
+  void send(int bytes, const uint8_t data[]);
 };
 
 #endif /* __cplusplus */
@@ -64,6 +64,6 @@
                            void *enable_chip, int enable_pin,
                            uint32_t frequency);
 
-void spi_gpio_send(void *channel, int bytes, uint8_t data[]);
+void spi_gpio_send(void *channel, int bytes, const uint8_t data[]);
 
 EXTERN_C_END
diff -r 494ab106b785 -r 53c6e7c8a7ac pkg/devices/lib/spi/src/gpio.cc
--- a/pkg/devices/lib/spi/src/gpio.cc	Sun Oct 15 22:24:25 2023 +0200
+++ b/pkg/devices/lib/spi/src/gpio.cc	Tue Oct 24 17:35:58 2023 +0200
@@ -43,7 +43,7 @@
 
 /* Send a SPI command. */
 
-void Spi_gpio::send(int bytes, uint8_t data[])
+void Spi_gpio::send(int bytes, const uint8_t data[])
 {
   struct timespec ts;
   uint8_t mask;
@@ -110,7 +110,7 @@
                                frequency);
 }
 
-void spi_gpio_send(void *channel, int bytes, uint8_t data[])
+void spi_gpio_send(void *channel, int bytes, const uint8_t data[])
 {
   static_cast<Spi_gpio *>(channel)->send(bytes, data);
 }