Hi Pavel, >>> Kernel config options should include useful help text; I had to look >>> up the terms on wikipedia. >>> >>> Signed-off-by: Pavel Machek <pa...@ucw.cz> >>> >>> diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig >>> index 68f951b..133c8a6 100644 >>> --- a/net/bluetooth/Kconfig >>> +++ b/net/bluetooth/Kconfig >>> @@ -45,6 +45,8 @@ config BT_BREDR >>> bool "Bluetooth Classic (BR/EDR) features" >>> depends on BT >>> default y >>> + help >>> + Support Bluetooth version 1 and 2 connections. >> >> so this is actually not correct. Version 5.0 is also Bluetooth BR/EDR. >> >> I am fine if use the terms "Basic Rate" and "Enhanced Data Rate" in the >> description, but the version numbers are kinda not how this works. So some >> alternative wording needs to be used: >> >> "Bluetooth Classic includes support for Basic Rate (BR) available with >> Bluetooth version 1.0b or later and support for Enhanced Data Rate (EDR) >> available with Bluetooth version 2.0 or later." >> > > Ok, works for me. > >>> + help >>> + Bluetooth 3 introduces high-speed mode where bluetooth endpoints >>> + negotiate fast connection over WIFI. This controls its support. >> >> Again, while Bluetooth version 3.0 introduces HS support, it is not what is >> selecting this. >> >> I think here we can write something like this: >> >> "Bluetooth High Speed includes support for off-loading Bluetooth connections >> via 802.11 physical layer available with Bluetooth version 3.0 or later." >> > > Ok. > >>> config BT_LE >>> bool "Bluetooth Low Energy (LE) features" >>> depends on BT >>> default y >>> + help >>> + Bluetooth 4 introduces special low-energy protocol, designed >>> + for simple devices. This controls its support. >> >> I think here it is also better to have an alternative text: >> >> "Bluetooth Low Energy includes support low-energy physical layer available >> with Bluetooth version 4.0 or later." >> > > Ok. Do I understand it correctly that Bluetooth LE basically has > nothing to do with bluetooth, and that Bluetooth 2 hardware will not > be able to detect / communicate with Bluetooth LE hardware?
if you have LE only on one side and BR/EDR only on the other side, then they can not communicate with each other. You need at least one side with dual-mode BR/EDR/LE support. Regards Marcel
