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-rw-r--r--miscutils/i2c_tools.c8
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;