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i2c_tools.c: i2ctransfer

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Call i2c_set_slave_addr() unconditionally as busy checking
is skipped depending on force argument.
Clarify usage texts for -f and -a flags.

Signed-off-by: Nikolaus Voss <nv@vosn.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Nikolaus Voss 2019-02-11 11:30:52 +01:00 committed by Denys Vlasenko
parent 61052d1bb8
commit f81e0120f4
1 changed files with 3 additions and 5 deletions
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8
miscutils/i2c_tools.c
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@ -1406,8 +1406,8 @@ static void check_i2c_func(int fd)
//usage:#define i2ctransfer_full_usage "\n\n"
//usage: "Read/write I2C data in one transfer"
//usage: "\n"
//usage: "\n -f Force access"
//usage: "\n -a Force scanning of non-regular addresses"
//usage: "\n -f Force access to busy addresses"
//usage: "\n -a Force access to non-regular addresses"
//usage: "\n -y Disable interactive mode"
int i2ctransfer_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int i2ctransfer_main(int argc UNUSED_PARAM, char **argv)
@ -1467,9 +1467,7 @@ int i2ctransfer_main(int argc UNUSED_PARAM, char **argv)
len = xstrtou_range(arg_ptr, 0, 0, 0xffff);
if (end) {
bus_addr = xstrtou_range(end + 1, 0, first, last);
//TODO: will this work correctly if -f is specified?
if (!(opts & opt_f))
i2c_set_slave_addr(fd, bus_addr, (opts & opt_f));
i2c_set_slave_addr(fd, bus_addr, (opts & opt_f));
} else {
/* Reuse last address if possible */
if (bus_addr < 0)