I need to get BlueZ working with KW30Z chip on a custom ARM board. It's strongly preferred to use SPI for HCI, since UART is needed for another purpose, but it looks HCI over SPI is not implemented in kernel. After some digging, it seems like the following options might work: 1) Implement HCI over SPI in drivers/bluetooth, similarly to hci_uart. 2) use hci_vhci and make a (userspace) bridge app that would forward traffic between vhci and spi device. I found a python example for some unsupported chip connected over UART. 3) Implement some kind of adapter between UART and SPI (fake UART device), and use hci_uart. What is the best/recommended way? It looks like the first option is the cleanest one, with some upstreaming potential, but it might involve much more work than the second one. On a related note, why is SPI is rarely, if at all, used for HCI? Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
