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authorKeith Packard <keithp@keithp.com>2016-09-03 00:52:12 -0500
committerKeith Packard <keithp@keithp.com>2016-09-03 00:58:39 -0500
commit1710a4921d4f408300c7d5adf0e83d08cc86be20 (patch)
tree22cf47548f1f8c5e502f77ba139ce74e681f248a /src/stm
parent5d913dde1fa58cbcb5edbc88405180e37ba0dbcd (diff)
altos/stm: Make ao_spi_duplex out pointer const
Provides a bit better typechecking opportunities for this function. Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/stm')
-rw-r--r--src/stm/ao_arch_funcs.h2
-rw-r--r--src/stm/ao_spi_stm.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/src/stm/ao_arch_funcs.h b/src/stm/ao_arch_funcs.h
index 9cfe29e6..18ca20da 100644
--- a/src/stm/ao_arch_funcs.h
+++ b/src/stm/ao_arch_funcs.h
@@ -137,7 +137,7 @@ void
ao_spi_recv(void *block, uint16_t len, uint8_t spi_index);
void
-ao_spi_duplex(void *out, void *in, uint16_t len, uint8_t spi_index);
+ao_spi_duplex(const void *out, void *in, uint16_t len, uint8_t spi_index);
extern uint16_t ao_spi_speed[STM_NUM_SPI];
diff --git a/src/stm/ao_spi_stm.c b/src/stm/ao_spi_stm.c
index 6b1d33d0..91e19adf 100644
--- a/src/stm/ao_spi_stm.c
+++ b/src/stm/ao_spi_stm.c
@@ -306,7 +306,7 @@ ao_spi_recv(void *block, uint16_t len, uint8_t spi_index)
}
void
-ao_spi_duplex(void *out, void *in, uint16_t len, uint8_t spi_index)
+ao_spi_duplex(const void *out, void *in, uint16_t len, uint8_t spi_index)
{
uint8_t id = AO_SPI_INDEX(spi_index);
struct stm_spi *stm_spi = ao_spi_stm_info[id].stm_spi;