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On 29 January 2015 at 22:14, Stefano Cappa <[email protected]> wrote:
> 1) It's possibile that "iw phy phy0 info" said that i can use a particular combination of interfaces in "Valid interface combinations" but on my device i can't use this combination? If yes, the problem is with the driver of this device?
Could happen. @add_virtual_intf (see struct cfg80211_ops) can fail.
> 2) How iw obtains the information to print "Valid interface combinations"? iw asks this information to the driver/hardware/or something else ?
See "struct wiphy" and its
const struct ieee80211_iface_combination *iface_combinations;
--
Rafał
On Fri, Jan 30, 2015 at 2:44 AM, Stefano Cappa
<[email protected]> wrote:
>
> Hi, i've two question about iw
>
> 1) It's possibile that "iw phy phy0 info" said that i can use a particular combination of interfaces in "Valid interface combinations" but on my device i can't use this combination? If yes, the problem is with the driver of this device?
>
> 2) How iw obtains the information to print "Valid interface combinations"? iw asks this information to the driver/hardware/or something else ?
>
Yes, it talks to the device driver and gets the combinations which the
device supports.