Inquiry response containing RSSI

Bluez-devel Richard Röjfors 2 participants 2 messages Mar 15, 2007 Bluetooth drivers

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Richard Röjfors

author

2007-03-15 10:55 UTC #0 lore raw

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Hi everyone,

Thanks for developing this stack, it works very well I must say!

But I have ran into a small limitation:
I want to do inquiries that contains rssi in the response. (I know it requires bluetooth >= 1.2).
I have a such dongle from CSR. I bluez from 2.6.20.1 and bluez-libs 3.9 btw. I set the inquiry mode to 1 using the bluez-libs function hci_write_inquiry_mode.

The interesting thing is that the RSSI makes it up to the inquiry cache inside the hci_module, but the interface (hci_inquiry, called by ioctl) only uses the struct inquiry_info, which does not contain RSSI.

So I was thinking of a way to support this, could be to introduce another more generic IOCTL. Which returns the struct inquiry_info_with_rssi, or rather a struct of a new type which is the combination of struct inquiry_info_with_rssi and struct inquiry_info.

What do you think?

- --
Richard

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Marcel Holtmann

maintainer

2007-03-15 13:01 UTC #1 lore raw

Hi Richard,

Quoted 6 lines

I want to do inquiries that contains rssi in the response. (I know it requires bluetooth >= 1.2).
I have a such dongle from CSR. I bluez from 2.6.20.1 and bluez-libs 3.9 btw. I set the inquiry mode to 1 using the bluez-libs function hci_write_inquiry_mode.

Quoted 8 lines

The interesting thing is that the RSSI makes it up to the inquiry cache inside the hci_module, but the interface (hci_inquiry, called by ioctl) only uses the struct inquiry_info, which does not contain RSSI.
So I was thinking of a way to support this, could be to introduce another more generic IOCTL. Which returns the struct inquiry_info_with_rssi, or rather a struct of a new type which is the combination of struct inquiry_info_with_rssi and struct inquiry_info.

use the new D-Bus based API. It takes care of everything for you.

Regards

Marcel