Hello,
What a quick answer ! :)
Ok here's my code :
This is the part for the struct ieee80211_hw and struct wiphy
initialization (between ieee80211_alloc_hw() and
ieee80211_register_hw() calls)
Global variables
/* Supported channel */
static struct ieee80211_channel channels = {
.band = IEEE80211_BAND_2GHZ,
.center_freq = 2437,
.hw_value = 0,
.flags = 0,
.max_antenna_gain = 3,
.max_power = 20,
.max_reg_power = 20,
.beacon_found = FALSE,
.orig_flags = 0,
.orig_mag = 0,
.orig_mpwr = 0,
};/* struct ieee80211_channel */
/* Supported bitrate */
static struct ieee80211_rate bitrates = {
.flags = 0,
/* bitrate in units of 100 Kbps */
.bitrate = 10,
.hw_value = 0,
.hw_value_short = 0,
};/* struct ieee80211_rate */
/* Supported band (channel + bitrate) */
static struct ieee80211_supported_band bands = {
.channels = &channels,
.bitrates = &bitrates,
.band = IEEE80211_BAND_2GHZ,
.n_channels = 1,
.n_bitrates = 1,
.ht_cap.ht_supported = FALSE,
};/* struct ieee80211_supported_band */
/* Configuration and hardware information for an 802.11 PHY */
struct ieee80211_hw *hw = priv->hw;
struct wiphy *wiphy = hw->wiphy;
int i = 0;
int ret = 0;
/* Test MAC address */
char mac_address[ETH_ALEN] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05};
/******************************
* Initializing hardware data *
******************************/
/* Received frames include FCS field */
/* Received signal power is given in dBm */
hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | IEEE80211_HW_SIGNAL_DBM;
/* Headroom to reserve in each transmit skb */
hw->extra_tx_headroom = 0;
//hw->channel_change_time = 0;
//hw->max_signal = 100;
//hw->max_listen_interval = 5;
/* Number of available hardware queues */
hw->queues = IEEE80211P_NUM_TXQ;
//hw->rate_control_algorithm = NULL;
hw->vif_data_size = sizeof(struct ieee80211p_vif_priv);
//hw->sta_data_size = sizeof(struct ieee80211p_sta_priv);
//hw->max_rates = 1;
//hw->max_report_rates = 1;
//hw->max_rate_tries = 1;
//hw->napi_weight = 0;
//hw->max_rx_aggregation = 0;
//hw->max_tx_aggregation = 0;
/***************************
* Initializing wiphy data *
***************************/
/* Regulatory domain */
//wiphy->reg_notifier = &ieee80211p_reg_notifier;
//ret = reg_copy_regd(&wiphy->regd,®d);
//wiphy->signal_type = CFG80211p_SIGNAL_TYPE_NONE;
//wiphy->cipher_suites = NULL;
//wiphy->n_cipher_suites = 0;
//wiphy->retry_short = 1;
//wiphy->retry_long = 1;
//wiphy->frag_threshold = -1;
//wiphy->rts_threshold = -1;
//wiphy_net_set(&hw->wiphy,NULL);
/* Set MAC address to hw->wiphy->perm_addr */
SET_IEEE80211_PERM_ADDR(hw,&mac_address[0]);
//wiphy->addr_mask
//wiphy->n_addresses = 0;
//wiphy->addresses = NULL;
//wiphy->registered
//wiphy->debugfsdir
//SET_IEEE80211_DEV(hw,NULL);
//wiphy->wext = NULL;
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_ADHOC);
//wiphy->iface_combinations = NULL;
//wiphy->n_iface_combinations = 0;
//wiphy->software_iftypes = 0;
//wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
//wiphy->flags = 0;
//wiphy->features = 0;
//wiphy->bss_priv_size = sizeof(struct ieee80211p_bss);
//wiphy->max_scan_ssids = 0;
//wiphy->max_sched_scan_ssids = 0;
//wiphy->max_match_sets = 0;
//wiphy->max_scan_ie_len = 0;
//wiphy->max_sched_scan_ie = 0;
//wiphy->coverage_class = 0;
//wiphy->fw_version
//wiphy->hw_version = 0;
//wiphy->max_num_pmkids = 0;
//wiphy->privid
/* Describes the frequency bands a wiphy is able to operate in */
for (i = 0;i<IEEE80211_NUM_BANDS;i++) {
wiphy->bands[i] = NULL;
}
wiphy->bands[IEEE80211_BAND_2GHZ] = &bands;
//wiphy->mgmt_stypes = NULL;
//wiphy->available_antennas_tx = 0x3;
//wiphy->available_antennas_rx = 0x3;
//wiphy->probe_resp_offload = 0;
//wiphy->max_remain_on_channel_duration = 0;
//wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
//wiphy->wowlan.n_patterns = 0;
//wiphy->wowlan.pattern_max_len = 0;
//wiphy->wowlan.pattern_min_len = 0;
//wiphy->ap_sme_capa = 0;
//wiphy->ht_capa_mod_mask = NULL;
Best regards.
Philippe
On Thu, Jul 5, 2012 at 4:27 PM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote:
> On Thu, 2012-07-05 at 16:25 +0200, Philippe Agostini wrote:
>> Hello,
>>
>> I am currently developing a wifi driver and I am having trouble with
>> the adhoc mode. I am developing on Ubuntu 10.04 with kernel 2.6.32. To
>> verify that my initialization is correct, I try to bring up and
>> configure virtual interfaces. It's working in managed mode, but when I
>> try an "ifconfig wlan0 up" in adhoc mode I get the following error
>> message: "SIOCSIFFLAGS: operation not supported". At first I thought
>> that it was because of the regulatory domain, but I defined only one
>> supported channel (channel 6, F=2437 MHz) and it seems to me that iw
>> reg get tells me that on this frequency I am allowed to set up
>> wireless device in adhoc mode (country 00: (2402 - 2472 @ 40), (3, 20)
>> and no flags following).
>>
>> Are there mandatory flags to set up (besides wiphy->interface_modes =
>> BIT(NL80211_IFTYPE_ADHOC)) that I missed, or callbacks to define in
>> order to have a working adhoc interface ?
>
> This would be a lot easier if you'd post your code :-)
>
> johannes
>
--
P.
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