On Tuesday 29 October 2013 00:39:47 Ben Hutchings wrote: > On Sat, 2013-10-26 at 22:34 +0200, Pali Rohár wrote: > > From: David Gnedt <david.gnedt@xxxxxxxxxxx> > > > > Port the bt_coex_mode sysfs interface from wl1251 driver > > version included in the Maemo Fremantle kernel to allow > > bt-coexistence mode configuration. This enables userspace > > applications to set one of the modes WL1251_BT_COEX_OFF, > > WL1251_BT_COEX_ENABLE and WL1251_BT_COEX_MONOAUDIO. The > > default mode is WL1251_BT_COEX_OFF. > > It should be noted that this driver always enabled > > bt-coexistence before and enabled bt-coexistence directly > > affects the receiving performance, rendering it unusable in > > some low-signal situations. Especially monitor mode is > > affected very badly with bt-coexistence enabled. > > [...] > > This should be implemented consistently with other drivers: > > drivers/net/wireless/ath/ath9k/htc_drv_init.c:module_param_nam > ed(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444); > drivers/net/wireless/ath/ath9k/init.c:module_param_named(btco > ex_enable, ath9k_btcoex_enable, int, 0444); > drivers/net/wireless/b43/main.c:module_param_named(btcoex, > modparam_btcoex, int, 0444); > drivers/net/wireless/ipw2x00/ipw2200.c:module_param(bt_coexis > t, int, 0444); > drivers/net/wireless/iwlegacy/common.c:module_param(bt_coex_a > ctive, bool, S_IRUGO); > drivers/net/wireless/iwlwifi/iwl-drv.c:module_param_named(bt_ > coex_active, iwlwifi_mod_params.bt_coex_active, > drivers/net/wireless/ti/wlcore/sysfs.c:static > DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR, > > Oh, hmm, I see a problem here. > > Ben. So where is consitency? Each driver doing this in different way: btcoex_enable, btcoex, bt_coexist, bt_coex_active Reason for this usage in wl1251 is to not break existing userspace applications. -- Pali Rohár pali.rohar@xxxxxxxxx
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