Gentoo Archives: gentoo-user

From: German <gentgerman@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] RTL8192CU
Date: Sun, 22 Mar 2015 10:35:59
Message-Id: 20150322063547.c0e259d69973c5623d588833@gmail.com
In Reply to: Re: [gentoo-user] RTL8192CU by Mick
1 On Sun, 22 Mar 2015 10:26:09 +0000
2 Mick <michaelkintzios@×××××.com> wrote:
3
4 > On Sunday 22 Mar 2015 05:19:41 German wrote:
5 > > On Sun, 22 Mar 2015 09:01:03 +0000
6 > > Mick <michaelkintzios@×××××.com> wrote:
7 >
8 > > > In addidion, use modinfo to find out what parameters the particular module
9 > > > has and add these when you modprobe to switch off power management -
10 > > > which on buggy drivers tends to power down the card.
11 > >
12 > > Where do I have to use "modinfo". Can you give an example. From my research,
13 > > that is exactly the power management which powers down the buggy drivers,
14 > > but I don't know what what are these module options which will prevent to
15 > > power the card down.
16 >
17 > I don't have your NIC, but in a laptop I post this in I get:
18 > =========================================
19 > $ modinfo iwlwifi
20 > filename: /lib/modules/3.18.7-
21 > gentoo/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko.gz
22 > license: GPL
23 > author: Copyright(c) 2003- 2014 Intel Corporation
24 > <ilw@×××××××××××.com>
25 > version: in-tree:
26 > description: Intel(R) Wireless WiFi driver for Linux
27 > firmware: iwlwifi-100-5.ucode
28 > firmware: iwlwifi-1000-5.ucode
29 > firmware: iwlwifi-135-6.ucode
30 > firmware: iwlwifi-105-6.ucode
31 > firmware: iwlwifi-2030-6.ucode
32 > firmware: iwlwifi-2000-6.ucode
33 > firmware: iwlwifi-5150-2.ucode
34 > firmware: iwlwifi-5000-5.ucode
35 > firmware: iwlwifi-6000g2b-6.ucode
36 > firmware: iwlwifi-6000g2a-5.ucode
37 > firmware: iwlwifi-6050-5.ucode
38 > firmware: iwlwifi-6000-4.ucode
39 > srcversion: FDA022BCC86979326790D21
40 > alias: pci:v00008086d00000892sv*sd00000462bc*sc*i*
41 > [snip ...]
42 >
43 > depends:
44 > intree: Y
45 > vermagic: 3.18.7-gentoo SMP preempt mod_unload
46 > parm: swcrypto:using crypto in software (default 0 [hardware]) (int)
47 > parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2:
48 > disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
49 > parm: amsdu_size_8K:enable 8K amsdu size (default 0) (int)
50 > parm: fw_restart:restart firmware in case of error (default true)
51 > (bool)
52 > parm: antenna_coupling:specify antenna coupling in dB (default: 0
53 > dB) (int)
54 > parm: wd_disable:Disable stuck queue watchdog timer 0=system
55 > default, 1=disable (default: 1) (int)
56 > parm: nvm_file:NVM file name (charp)
57 > parm: uapsd_disable:disable U-APSD functionality (default: Y) (bool)
58 > parm: bt_coex_active:enable wifi/bt co-exist (default: enable)
59 > (bool)
60 > parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off),
61 > 2=blinking, 3=Off (default: 0) (int)
62 > parm: power_save:enable WiFi power management (default: disable)
63 > (bool)
64 > parm: power_level:default power save level (range from 1 - 5,
65 > default: 1) (int)
66 > parm: fw_monitor:firmware monitor - to debug FW (default: false -
67 > needs lots of memory) (bool)
68 > =========================================
69 >
70 > So in my card I have: "parm: power_save:enable WiFi power management" which
71 > is by default disabled. If I wanted to enable this parameter I would need to
72 > use a boolean term, e.g. 'true', or 'on', or '1', or 'enable'. Yours would be
73 > similar, but the exact parameter would be revealed when you run 'modinfo
74 > <your_module_name>'
75 >
76 > Then call this parameter when you modprobe the module. For example:
77 >
78 > modprobe -r <your_module_name>
79 > modprobe -v <your_module_name> power_level=0
80 >
81 > Look at dmesg or syslog to see the result of your incantantion.
82 >
83 > If this solves your problem you can permanently define such a parameter in
84 > your /etc/conf.d/modules.
85 >
86 > --
87 > Regards,
88 > Mick
89 >
90 Thanks Mick, I'll take a closer look at it when I have time. Appreciate it.
91
92 --