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author | Lennert Buytenhek <buytenh@wantstofly.org> | 2015-05-25 15:38:29 +0300 |
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committer | Marcel Holtmann <marcel@holtmann.org> | 2015-05-26 20:25:58 +0200 |
commit | b251d4de671ca0623d19b88a8af7f038499db631 (patch) | |
tree | e0501c5ff9139bf3b2923ab50bde42930d6413aa /Documentation/networking/ieee802154.txt | |
parent | c032705ebfed32a6dcda72d83c54f060d4bf1e6e (diff) | |
download | linux-b251d4de671ca0623d19b88a8af7f038499db631.tar.bz2 |
Documentation/networking/ieee802154.txt: fix various inaccuracies.
* Update the linux-zigbee git:// repository URL.
* Remove the MLME section as the current kernel does not provide a
full 802.15.4 MLME implementation.
* The hardmac example driver 'fakehard' was removed some time ago.
* The IEEE 802.15.4 device drivers live in drivers/net/ieee802154/,
not in drivers/ieee802154/.
* The IEEE 802.15.4 MTU is 127 bytes, not 128 bytes.
* Some of the 6LoWPAN code lives in net/6lowpan/.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'Documentation/networking/ieee802154.txt')
-rw-r--r-- | Documentation/networking/ieee802154.txt | 32 |
1 files changed, 11 insertions, 21 deletions
diff --git a/Documentation/networking/ieee802154.txt b/Documentation/networking/ieee802154.txt index 22bbc7225f8e..1700756af057 100644 --- a/Documentation/networking/ieee802154.txt +++ b/Documentation/networking/ieee802154.txt @@ -30,8 +30,8 @@ int sd = socket(PF_IEEE802154, SOCK_DGRAM, 0); The address family, socket addresses etc. are defined in the include/net/af_ieee802154.h header or in the special header -in our userspace package (see either linux-zigbee sourceforge download page -or git tree at git://linux-zigbee.git.sourceforge.net/gitroot/linux-zigbee). +in the userspace package (see either http://wpan.cakelab.org/ or the +git tree at https://github.com/linux-wpan/wpan-tools). One can use SOCK_RAW for passing raw data towards device xmit function. YMMV. @@ -49,15 +49,6 @@ Like with WiFi, there are several types of devices implementing IEEE 802.15.4. Those types of devices require different approach to be hooked into Linux kernel. -MLME - MAC Level Management -============================ - -Most of IEEE 802.15.4 MLME interfaces are directly mapped on netlink commands. -See the include/net/nl802154.h header. Our userspace tools package -(see above) provides CLI configuration utility for radio interfaces and simple -coordinator for IEEE 802.15.4 networks as an example users of MLME protocol. - - HardMAC ======= @@ -75,8 +66,6 @@ net_device with a pointer to struct ieee802154_mlme_ops instance. The fields assoc_req, assoc_resp, disassoc_req, start_req, and scan_req are optional. All other fields are required. -We provide an example of simple HardMAC driver at drivers/ieee802154/fakehard.c - SoftMAC ======= @@ -89,7 +78,8 @@ stack interface for network sniffers (e.g. WireShark). This layer is going to be extended soon. -See header include/net/mac802154.h and several drivers in drivers/ieee802154/. +See header include/net/mac802154.h and several drivers in +drivers/net/ieee802154/. Device drivers API @@ -114,18 +104,17 @@ Moreover IEEE 802.15.4 device operations structure should be filled. Fake drivers ============ -In addition there are two drivers available which simulate real devices with -HardMAC (fakehard) and SoftMAC (fakelb - IEEE 802.15.4 loopback driver) -interfaces. This option provides possibility to test and debug stack without -usage of real hardware. +In addition there is a driver available which simulates a real device with +SoftMAC (fakelb - IEEE 802.15.4 loopback driver) interface. This option +provides possibility to test and debug stack without usage of real hardware. -See sources in drivers/ieee802154 folder for more details. +See sources in drivers/net/ieee802154 folder for more details. 6LoWPAN Linux implementation ============================ -The IEEE 802.15.4 standard specifies an MTU of 128 bytes, yielding about 80 +The IEEE 802.15.4 standard specifies an MTU of 127 bytes, yielding about 80 octets of actual MAC payload once security is turned on, on a wireless link with a link throughput of 250 kbps or less. The 6LoWPAN adaptation format [RFC4944] was specified to carry IPv6 datagrams over such constrained links, @@ -140,7 +129,8 @@ In Semptember 2011 the standard update was published - [RFC6282]. It deprecates HC1 and HC2 compression and defines IPHC encoding format which is used in this Linux implementation. -All the code related to 6lowpan you may find in files: net/ieee802154/6lowpan.* +All the code related to 6lowpan you may find in files: net/6lowpan/* +and net/ieee802154/6lowpan/* To setup 6lowpan interface you need (busybox release > 1.17.0): 1. Add IEEE802.15.4 interface and initialize PANid; |