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authorGravatar Bartosz Golaszewski <bartekgola@gmail.com>2015-06-05 10:27:29 +0200
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2015-06-07 18:05:46 +0200
commite545bf6723ebfd486c6dce6b754b6de792c46de1 (patch)
treeedcbed2fc8fe38eb04507b628304ac870ac2b2d6 /miscutils/i2c_tools.c
parent314742747deecd454ae58dfd68be453115ba226c (diff)
downloadbusybox-e545bf6723ebfd486c6dce6b754b6de792c46de1.tar.gz
busybox-e545bf6723ebfd486c6dce6b754b6de792c46de1.tar.bz2
i2cdetect: don't scan non-regular addresses without the '-a' option
Addresses 0x00-0x02 shouldn't be scanned by default. This patch makes 'first' default to 0x03 and only enables lower addresses if '-a' option is passed Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'miscutils/i2c_tools.c')
-rw-r--r--miscutils/i2c_tools.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/miscutils/i2c_tools.c b/miscutils/i2c_tools.c
index d5127ec27..6f9787280 100644
--- a/miscutils/i2c_tools.c
+++ b/miscutils/i2c_tools.c
@@ -1282,7 +1282,7 @@ int i2cdetect_main(int argc UNUSED_PARAM, char **argv)
const char *const optstr = "yaqrFl";
int fd, bus_num, i, j, mode = DETECT_MODE_AUTO, status;
- unsigned first = 0x00, last = 0x77, opts;
+ unsigned first = 0x03, last = 0x77, opts;
unsigned long funcs;
opt_complementary = "q--r:r--q:" /* mutually exclusive */
@@ -1316,8 +1316,10 @@ int i2cdetect_main(int argc UNUSED_PARAM, char **argv)
else if (opts & opt_q)
mode = DETECT_MODE_QUICK;
- if (opts & opt_a)
+ if (opts & opt_a) {
+ first = 0x00;
last = 0x7f;
+ }
/* Read address range. */
if (argv[1]) {