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extmod/machine_i2c: Do a fast poll during I2C.scan(). 

Fixes issue #12912.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2023-11-08 23:34:08 +11:00
parent 958c6d917d
commit dff293840e
1 changed files with 6 additions and 1 deletions
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7
extmod/machine_i2c.c
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@ -328,7 +328,12 @@ STATIC mp_obj_t machine_i2c_scan(mp_obj_t self_in) {
if (ret == 0) {
mp_obj_list_append(list, MP_OBJ_NEW_SMALL_INT(addr));
}
#ifdef MICROPY_EVENT_POLL_HOOK
// This scan loop may run for some time, so process any pending events/exceptions,
// or allow the port to run any necessary background tasks. But do it as fast as
// possible, in particular we are not waiting on any events.
#if defined(MICROPY_EVENT_POLL_HOOK_FAST)
MICROPY_EVENT_POLL_HOOK_FAST;
#elif defined(MICROPY_EVENT_POLL_HOOK)
MICROPY_EVENT_POLL_HOOK
#endif
}