TonBERRY/micropython
3
0
Fork 0
Code Pull Requests Activity

extmod/machine_i2c: Only use WRITE1 option if transfer supports it.

Browse Source 
When MICROPY_PY_MACHINE_I2C_TRANSFER_WRITE1 is enabled the port's hardware
I2C transfer functions should support the MP_MACHINE_I2C_FLAG_WRITE1
option, but software I2C will not.  So add a flag to the I2C protocol
struct so each individual protocol can indicate whether it supports this
option or not.

Fixes issue #8765.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2022-06-17 11:57:57 +10:00
parent d7919ea71e
commit 5233fb3a3d
3 changed files with 16 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
ports/esp32/machine_i2c.c
View File

@@ -188,6 +188,7 @@ mp_obj_t machine_hw_i2c_make_new(const mp_obj_type_t *type, size_t n_args, size_
}
STATIC const mp_machine_i2c_p_t machine_hw_i2c_p = {
.transfer_supports_write1 = true,
.transfer = machine_hw_i2c_transfer,
};