diff options
| -rw-r--r-- | nt36xxx/nt36xxx.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/nt36xxx/nt36xxx.c b/nt36xxx/nt36xxx.c index ea24edb..ab7d104 100644 --- a/nt36xxx/nt36xxx.c +++ b/nt36xxx/nt36xxx.c @@ -1591,8 +1591,14 @@ static void process_usi_responses(uint16_t info_buf_flags, const uint8_t *info_b } } - if (info_buf_flags & USI_NORMAL_PAIR_FLAG) - nvt_usi_clear_stylus_read_map(); + if (info_buf_flags & USI_NORMAL_PAIR_FLAG) { + uint8_t hash_id[2] = {0}; + + /* clear stylus info map if the HASH ID is not available or not matched */ + if (nvt_usi_get_hash_id(hash_id) || hash_id[0] != *(info_buf + USI_HASH_ID_OFFSET) || + hash_id[1] != *(info_buf + USI_HASH_ID_OFFSET + 1)) + nvt_usi_clear_stylus_read_map(); + } if (info_buf_flags & USI_BATTERY_FLAG) { nvt_usi_store_battery(info_buf + USI_BATTERY_OFFSET); |