diff options
| -rw-r--r-- | miscutils/i2c_tools.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/miscutils/i2c_tools.c b/miscutils/i2c_tools.c index 2805cf3..7034dc9 100644 --- a/miscutils/i2c_tools.c +++ b/miscutils/i2c_tools.c @@ -379,8 +379,12 @@ static int i2c_dev_open(int i2cbus) sprintf(filename, "/dev/i2c-%d", i2cbus); fd = open(filename, O_RDWR); if (fd < 0) { - filename[8] = '/'; /* change to "/dev/i2c/%d" */ - fd = xopen(filename, O_RDWR); + if (errno == ENOENT) { + filename[8] = '/'; /* change to "/dev/i2c/%d" */ + fd = xopen(filename, O_RDWR); + } else { + bb_perror_msg_and_die("can't open '%s'", filename); + } } return fd; |