7ca5c51cc8
4 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Bartosz Golaszewski
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7ca5c51cc8 |
i2c-tools: only try /dev/i2c/* if opening /dev/i2c-* fails with ENOENT
Trying to access /dev/i2c/* on every error after opening /dev/i2c-* can
mislead users who e.g. don't have root access. Instead of bailing-out
with "permission denied" we currently print "no such file or directory".
Fix it by trying open("/dev/i2c/%d") only if we got ENOENT.
Upstream i2cdetect tries to get any info it can from /sys and /proc even
when invoked by an unprivileged user, but we don't want to add unnecessary
bloat.
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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Bartosz Golaszewski
|
b2cca32a37 |
i2c-tools: fix 'i2cdetect -l'
Calling 'i2cdetect -l' only displays usage and exits. Fix it by correctly parsing command-line arguments. Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> |
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Denys Vlasenko
|
8dff01d06a |
libbb: introduce and use is_prefixed_with()
function old new delta is_prefixed_with - 18 +18 complete_username 78 77 -1 man_main 737 735 -2 fsck_device 429 427 -2 unpack_ar_archive 80 76 -4 strip_unsafe_prefix 105 101 -4 singlemount 1054 1050 -4 rtc_adjtime_is_utc 90 86 -4 resolve_mount_spec 88 84 -4 parse_one_line 1029 1025 -4 parse_conf 1460 1456 -4 may_wakeup 83 79 -4 loadkmap_main 219 215 -4 get_irqs_from_stat 103 99 -4 get_header_cpio 913 909 -4 findfs_main 79 75 -4 fbsplash_main 1230 1226 -4 load_crontab 776 771 -5 expand_vars_to_list 1151 1146 -5 date_main 881 876 -5 skip_dev_pfx 30 24 -6 make_device 2199 2193 -6 complete_cmd_dir_file 773 767 -6 run_applet_and_exit 715 708 -7 uudecode_main 321 313 -8 pwdx_main 197 189 -8 execute 568 560 -8 i2cdetect_main 1186 1176 -10 procps_scan 1242 1230 -12 procps_read_smaps 1017 1005 -12 process_module 746 734 -12 patch_main 1903 1891 -12 nfsmount 3572 3560 -12 stack_machine 126 112 -14 process_timer_stats 449 435 -14 match_fstype 111 97 -14 do_ipaddr 1344 1330 -14 open_list_and_close 359 343 -16 get_header_tar 1795 1779 -16 prepend_new_eth_table 340 323 -17 fsck_main 1811 1794 -17 find_iface_state 56 38 -18 dnsd_main 1321 1303 -18 base_device 179 158 -21 find_keyword 104 82 -22 handle_incoming_and_exit 2785 2762 -23 parse_and_put_prompt 774 746 -28 modinfo 347 317 -30 find_action 204 171 -33 update_passwd 1470 1436 -34 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 0/49 up/down: 18/-540) Total: -522 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> |
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Bartosz Golaszewski
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622a7aab2c |
i2cget, i2cset, i2cdetect, i2cdump: new applets
Add a minimal implementation of i2cget, i2cset, i2cdump and i2cdetect tools. Supports most features of upstream i2c-tools. function old new delta i2cdump_main - 1444 +1444 i2cset_main - 1239 +1239 i2cdetect_main - 611 +611 list_i2c_busses_and_exit - 532 +532 packed_usage 29975 30438 +463 i2cget_main - 380 +380 check_read_funcs - 140 +140 i2c_funcs_tab - 128 +128 confirm_action - 100 +100 i2c_dev_open - 57 +57 i2c_smbus_access - 44 +44 confirm_or_abort - 43 +43 check_funcs_test_end - 39 +39 i2c_smbus_read_word_data - 38 +38 i2c_smbus_read_byte_data - 38 +38 i2c_smbus_read_byte - 37 +37 i2c_set_slave_addr - 32 +32 applet_names 2480 2512 +32 adap_descs - 32 +32 i2c_set_pec - 29 +29 get_funcs_matrix - 21 +21 i2c_parse_data_addr - 18 +18 i2c_parse_bus_addr - 18 +18 i2c_bus_lookup - 18 +18 i2c_smbus_write_byte - 17 +17 applet_main 1440 1456 +16 will_skip - 14 +14 no_support - 11 +11 applet_nameofs 720 728 +8 applet_install_loc 180 182 +2 ------------------------------------------------------------------------------ (add/remove: 26/0 grow/shrink: 5/0 up/down: 5601/0) Total: 5601 bytes Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> |