From c09430abed4159e5c56aaea257d040f7452daba6 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Fri, 16 Oct 2009 14:25:50 -0700 Subject: iwlwifi: show current power save status reported by uCode Power save request is sent from driver to uCode, but there is no indication from uCode about the current device power save state. Reading GP_CNTRL register bit 25:24 to show the current power save status 00: no power save 01: MAC power down 10: PHY power down 11: Error The uCode could switch in and out of power save mode in the order of once per 100-300 ms in many cases. The reading here should just be used for reference on the current uCode power save status. Do not confuse this reading with the PowerSave set by driver and mac80211. Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-debug.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/wireless/iwlwifi/iwl-debug.h') diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index b9ca475cc61..96c92eab692 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -106,6 +106,7 @@ struct iwl_debugfs { struct dentry *file_sensitivity; struct dentry *file_chain_noise; struct dentry *file_tx_power; + struct dentry *file_power_save_status; } dbgfs_debug_files; u32 sram_offset; u32 sram_len; -- cgit v1.2.3-70-g09d2