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docs: net: convert two README files to ReST format
There are two README files there with doesn't have a .txt extension nor are at ReST format. In order to help with the docs conversion to ReST, rename those and manually convert them to ReST format. As there are lot more to be done for networking to be part of the documentation body, for now mark those two files with :orphan:, in order to supress a build warning. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Mauro Carvalho Chehab
Jonathan Corbet
parent
47359e5734
commit
e15d5a53ea
@ -1,18 +1,31 @@
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Copyright (C) ST-Ericsson AB 2010
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Author: Sjur Brendeland/ sjur.brandeland@stericsson.com
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License terms: GNU General Public License (GPL) version 2
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---------------------------------------------------------
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:orphan:
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=== Start ===
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If you have compiled CAIF for modules do:
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$modprobe crc_ccitt
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$modprobe caif
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$modprobe caif_socket
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$modprobe chnl_net
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.. SPDX-License-Identifier: GPL-2.0
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.. include:: <isonum.txt>
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=== Preparing the setup with a STE modem ===
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================
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Using Linux CAIF
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================
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:Copyright: |copy| ST-Ericsson AB 2010
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:Author: Sjur Brendeland/ sjur.brandeland@stericsson.com
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Start
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=====
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If you have compiled CAIF for modules do::
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$modprobe crc_ccitt
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$modprobe caif
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$modprobe caif_socket
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$modprobe chnl_net
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Preparing the setup with a STE modem
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====================================
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If you are working on integration of CAIF you should make sure
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that the kernel is built with module support.
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@ -32,24 +45,30 @@ module parameter "ser_use_stx".
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Normally Frame Checksum is always used on UART, but this is also provided as a
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module parameter "ser_use_fcs".
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$ modprobe caif_serial ser_ttyname=/dev/ttyS0 ser_use_stx=yes
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$ ifconfig caif_ttyS0 up
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::
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PLEASE NOTE: There is a limitation in Android shell.
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$ modprobe caif_serial ser_ttyname=/dev/ttyS0 ser_use_stx=yes
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$ ifconfig caif_ttyS0 up
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PLEASE NOTE:
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There is a limitation in Android shell.
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It only accepts one argument to insmod/modprobe!
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=== Trouble shooting ===
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Trouble shooting
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================
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There are debugfs parameters provided for serial communication.
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/sys/kernel/debug/caif_serial/<tty-name>/
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* ser_state: Prints the bit-mask status where
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- 0x02 means SENDING, this is a transient state.
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- 0x10 means FLOW_OFF_SENT, i.e. the previous frame has not been sent
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and is blocking further send operation. Flow OFF has been propagated
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to all CAIF Channels using this TTY.
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* tty_status: Prints the bit-mask tty status information
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- 0x01 - tty->warned is on.
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- 0x02 - tty->low_latency is on.
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- 0x04 - tty->packed is on.
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@ -58,13 +77,17 @@ There are debugfs parameters provided for serial communication.
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- 0x20 - tty->stopped is on.
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* last_tx_msg: Binary blob Prints the last transmitted frame.
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This can be printed with
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This can be printed with::
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$od --format=x1 /sys/kernel/debug/caif_serial/<tty>/last_rx_msg.
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The first two tx messages sent look like this. Note: The initial
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byte 02 is start of frame extension (STX) used for re-syncing
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upon errors.
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- Enumeration:
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- Enumeration::
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0000000 02 05 00 00 03 01 d2 02
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STX(1) | | | |
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@ -73,7 +96,9 @@ There are debugfs parameters provided for serial communication.
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Command:Enumeration(1)
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Link-ID(1)
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Checksum(2)
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- Channel Setup:
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- Channel Setup::
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0000000 02 07 00 00 00 21 a1 00 48 df
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STX(1) | | | | | |
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@ -86,13 +111,18 @@ There are debugfs parameters provided for serial communication.
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Checksum(2)
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* last_rx_msg: Prints the last transmitted frame.
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The RX messages for LinkSetup look almost identical but they have the
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bit 0x20 set in the command bit, and Channel Setup has added one byte
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before Checksum containing Channel ID.
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NOTE: Several CAIF Messages might be concatenated. The maximum debug
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NOTE:
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Several CAIF Messages might be concatenated. The maximum debug
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buffer size is 128 bytes.
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== Error Scenarios:
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Error Scenarios
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===============
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- last_tx_msg contains channel setup message and last_rx_msg is empty ->
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The host seems to be able to send over the UART, at least the CAIF ldisc get
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notified that sending is completed.
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@ -103,7 +133,9 @@ There are debugfs parameters provided for serial communication.
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- if /sys/kernel/debug/caif_serial/<tty>/tty_status is non-zero there
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might be problems transmitting over UART.
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E.g. host and modem wiring is not correct you will typically see
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tty_status = 0x10 (hw_stopped) and ser_state = 0x10 (FLOW_OFF_SENT).
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You will probably see the enumeration message in last_tx_message
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and empty last_rx_message.
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@ -1,5 +1,13 @@
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:orphan:
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.. SPDX-License-Identifier: GPL-2.0
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.. include:: <isonum.txt>
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===================================================================
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mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
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Copyright (c) 2008, Jouni Malinen <j@w1.fi>
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===================================================================
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:Copyright: |copy| 2008, Jouni Malinen <j@w1.fi>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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@ -7,6 +15,7 @@ published by the Free Software Foundation.
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Introduction
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============
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mac80211_hwsim is a Linux kernel module that can be used to simulate
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arbitrary number of IEEE 802.11 radios for mac80211. It can be used to
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@ -43,6 +52,7 @@ regardless of channel.
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Simple example
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==============
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This example shows how to use mac80211_hwsim to simulate two radios:
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one to act as an access point and the other as a station that
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@ -50,17 +60,19 @@ associates with the AP. hostapd and wpa_supplicant are used to take
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care of WPA2-PSK authentication. In addition, hostapd is also
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processing access point side of association.
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::
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# Build mac80211_hwsim as part of kernel configuration
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# Load the module
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modprobe mac80211_hwsim
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# Build mac80211_hwsim as part of kernel configuration
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# Run hostapd (AP) for wlan0
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hostapd hostapd.conf
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# Load the module
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modprobe mac80211_hwsim
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# Run wpa_supplicant (station) for wlan1
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wpa_supplicant -Dnl80211 -iwlan1 -c wpa_supplicant.conf
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# Run hostapd (AP) for wlan0
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hostapd hostapd.conf
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# Run wpa_supplicant (station) for wlan1
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wpa_supplicant -Dnl80211 -iwlan1 -c wpa_supplicant.conf
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More test cases are available in hostap.git:
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@ -9578,7 +9578,7 @@ F: Documentation/networking/mac80211-injection.txt
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F: include/net/mac80211.h
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F: net/mac80211/
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F: drivers/net/wireless/mac80211_hwsim.[ch]
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F: Documentation/networking/mac80211_hwsim/README
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F: Documentation/networking/mac80211_hwsim/mac80211_hwsim.rst
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MAILBOX API
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M: Jassi Brar <jassisinghbrar@gmail.com>
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