diff options
Diffstat (limited to 'i2c.c')
| -rw-r--r-- | i2c.c | 9 |
1 files changed, 7 insertions, 2 deletions
@@ -10,6 +10,9 @@ #define I2C_BUS "/dev/i2c-3" +gboolean write_error_flagged; +gboolean read_error_flagged; + void I2C_Write(gulong address, guchar value) { @@ -23,7 +26,8 @@ void I2C_Write(gulong address, guchar value) int device = open(I2C_BUS, O_RDWR); - if (device == -1) { + if ((device == -1) && !write_error_flagged) { + write_error_flagged = TRUE; g_print_debug("ERROR: could not open I2C bus %s for writing\n", I2C_BUS); return; } @@ -48,7 +52,8 @@ guchar I2C_Read(gulong address) int device = open(I2C_BUS, O_RDWR); - if (device == -1) { + if ((device == -1) && !read_error_flagged) { + read_error_flagged = TRUE; g_print_debug("ERROR: could not open I2C bus %s for reading\n", I2C_BUS); return 0; } |