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Diffstat (limited to 'src/ec/google/chromeec/ec.c')
| -rw-r--r-- | src/ec/google/chromeec/ec.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c index d8305292c1..e068bed6dc 100644 --- a/src/ec/google/chromeec/ec.c +++ b/src/ec/google/chromeec/ec.c @@ -34,6 +34,15 @@ #include "ec_commands.h" #include <vendorcode/google/chromeos/chromeos.h> +uint8_t google_chromeec_calc_checksum(const uint8_t *data, int size) +{ + int csum; + + for (csum = 0; size > 0; data++, size--) + csum += *data; + return (uint8_t)(csum & 0xff); +} + int google_chromeec_kbbacklight(int percent) { struct chromeec_command cec_cmd; |