i.MX ProcessorsのトピックRe: Bluetooth HCI Setup command

Bluetooth HCI Setup command

tanoue — Wed, 21 Sep 2022 08:03:13 GMT

I would like to make a Bluetooth driver for IW416 chipset on i.MX8M SoC.

I read a NXP document (11.1 Connectivity for Bluetooth wireless technology and Wi-Fi) and a knowledge base then I could use Bluetooth function now.

However, I didn't fully understand how to setup Bluetooth HCI.

Please tell me what each command does.

# For PCIe8997/SDIO8997/SDIO8987 and SDIO IW41
hciattach <device> any 115200 flow
hciconfig hci0 up
hcitool -i hci0 cmd 0x3f 0x0009 0xc0 0xc6 0x2d 0x00
killall hciattach
hciattach <device> any -s 3000000 3000000 flow
hciconfig hci0 up

I wonder why it needs to execute twice "hciattach" and twice "hciconfig hci0 up".

These details are not written in any documentation.

Best Regards,

tanoue.

Re: Bluetooth HCI Setup command

Rita_Wang — Wed, 21 Sep 2022 09:37:43 GMT

Recommend you to create thread here https://community.nxp.com/t5/Wireless-Connectivity/bd-p/wireless-connectivity.

Hope can do help for you

Wish you have a nice day

Re: Bluetooth HCI Setup command

tanoue — Wed, 21 Sep 2022 23:52:48 GMT

Hi, @Rita_Wang

Thanks to your advice.

I posted to new thread here.

https://community.nxp.com/t5/Wireless-Connectivity/Bluetooth-HCI-Setup-command-moved-from-i-MX-Processors-section/m-p/1526240