From 07f02e4625e6d7ca5d4f3835aea9807fe1e0f9c5 Mon Sep 17 00:00:00 2001 From: Zhu Yi Date: Thu, 13 Apr 2006 17:19:25 +0800 Subject: [PATCH] [PATCH] ipw2200: generates a scan event after a scan has completed The patch make ipw2200 generate the scan event every time a scan has completed, so that user space know when to get fresh results. Dan Williams would like to go towards this model in Network Manager rather than having to poll. Signed-off-by: Jean Tourrilhes Signed-off-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/ipw2200.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ipw2200.c b/drivers/net/wireless/ipw2200.c index 0500e8006a14..61cbf2ec0ab4 100644 --- a/drivers/net/wireless/ipw2200.c +++ b/drivers/net/wireless/ipw2200.c @@ -4489,6 +4489,24 @@ static void ipw_rx_notification(struct ipw_priv *priv, && priv->status & STATUS_ASSOCIATED) queue_delayed_work(priv->workqueue, &priv->request_scan, HZ); + + /* Send an empty event to user space. + * We don't send the received data on the event because + * it would require us to do complex transcoding, and + * we want to minimise the work done in the irq handler + * Use a request to extract the data. + * Also, we generate this even for any scan, regardless + * on how the scan was initiated. User space can just + * sync on periodic scan to get fresh data... + * Jean II */ + if (x->status == SCAN_COMPLETED_STATUS_COMPLETE) { + union iwreq_data wrqu; + + wrqu.data.length = 0; + wrqu.data.flags = 0; + wireless_send_event(priv->net_dev, SIOCGIWSCAN, + &wrqu, NULL); + } break; } @@ -8379,7 +8397,8 @@ static int ipw_wx_get_range(struct net_device *dev, /* Event capability (kernel + driver) */ range->event_capa[0] = (IW_EVENT_CAPA_K_0 | IW_EVENT_CAPA_MASK(SIOCGIWTHRSPY) | - IW_EVENT_CAPA_MASK(SIOCGIWAP)); + IW_EVENT_CAPA_MASK(SIOCGIWAP) | + IW_EVENT_CAPA_MASK(SIOCGIWSCAN)); range->event_capa[1] = IW_EVENT_CAPA_K_1; range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | -- 2.20.1