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#243

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This commit is contained in:
mstroh76
2024-05-17 20:03:06 +02:00
parent 5546986129
commit 01ea71461b
1 changed files with 5 additions and 3 deletions
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8
wiringPi/wiringPiSPI.c
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@@ -72,7 +72,6 @@ static int spiFds [7][3] =
};
int SPICheckLimits(const int number, const int channel) {
if (channel<0 || channel>=WPI_MaxSPIChannels) {
fprintf (stderr, "wiringPiSPI: Invalid SPI channel (%d, valid range 0-%d)", channel, WPI_MaxSPIChannels-1);
@@ -119,13 +118,16 @@ int wiringPiSPIGetFd(int channel) {
int wiringPiSPIxDataRW (const int number, const int channel, unsigned char *data, const int len)
{
struct spi_ioc_transfer spi ;
RETURN_ON_LIMIT_FAIL
if (-1==spiFds[number][channel]) {
fprintf (stderr, "wiringPiSPI: Invalid SPI number/channel (need wiringPiSPIxSetupMode before read/write)");
return EBADF;
}
struct spi_ioc_transfer spi ;
// Mentioned in spidev.h but not used in the original kernel documentation
// test program )-:
memset (&spi, 0, sizeof (spi)) ;
spi.tx_buf = (unsigned long)data ;