Hello, SMPS (Spatial multiplexing power save) is a feature proposed in 802.11n to reduce power consumption. When device is playing in Access Point and 802.11n mode is disable setting disable_ht = 1, the HT Capabilities (conf->ht_capab) are "cleaned" (Set to zero) in function wpa_supplicant_conf_ap_ht, but the value 0 does not actually clean the capabilities, instead it is being set to use SMPS_STATIC: #define HT_CAP_INFO_SMPS_STATIC ((u16) 0) #define HT_CAP_INFO_SMPS_DYNAMIC ((u16) BIT(2)) #define HT_CAP_INFO_SMPS_DISABLED ((u16) (BIT(2) | BIT(3))) Therefore, when the beacons parameters are configured, it results in an error because SMPS is set to SMPS_STATIC mode in a non-802.11n configuration: nl80211: Beacon set failed: -22 (Invalid argument) Best regards, Jose Blanquicet wpa_supplicant/ap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.9.1 _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
