spicmds: Rework spi config commands

Rework the spi_config commands so that bus configuration and shutdown
message configuration is done separately from the main "config_spi"
command.  This makes the spi configuration more flexible.  It's now
possible to use software spi without a CS pin.  It's now possible to
define multiple SPI messages to send on a shutdown event.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/linux/spidev.c b/src/linux/spidev.c
index 5c613cba..764541e3 100644
--- a/src/linux/spidev.c
+++ b/src/linux/spidev.c
@@ -97,13 +97,13 @@ spi_transfer(struct spi_config config, uint8_t receive_data
         int ret = ioctl(config.fd, SPI_IOC_MESSAGE(1), &transfer);
         if (ret < 0) {
             report_errno("spi ioctl", ret);
-            shutdown("Unable to issue spi ioctl");
+            try_shutdown("Unable to issue spi ioctl");
         }
     } else {
         int ret = write(config.fd, data, len);
         if (ret < 0) {
             report_errno("write spi", ret);
-            shutdown("Unable to write to spi");
+            try_shutdown("Unable to write to spi");
         }
     }
 }