I'm try to use ESP8266 as external Wifi adapter in linux system.
It connected as SDIO slave. One device use 4-bit SDIO and work fine.
Other device have only 1-bit SDIO. In this connection driver is
failed to initialize chip. I'm turned on driver debug output and see:
- driver found the chip and succesfully download firmware to it;
- then driver send esp init data (128 bytes data + 12 bytes header),
but chip do not answered.
Driver is break init process with timeout error.