linux-toradex.git/Documentation/networking/phonet.txt, branch v3.12.5

Phonet: kill the ST-Ericsson pipe controller Kconfig

2011-03-09T19:59:33+00:00

This is now a run-time choice so that a single kernel can support both
old and new generation ISI modems. Support for manually enabling the
pipe flow is removed as it did not work properly, does not fit well
with the socket API, and I am not aware of any use at the moment.

Signed-off-by: Rémi Denis-Courmont 
Signed-off-by: David S. Miller

Phonet: support active connection without pipe controller on modem

2011-03-09T19:59:33+00:00

This provides support for newer ISI modems with no need for the
earlier experimental compile-time alternative choice. With this,
we can now use the same kernel and userspace with both types of
modems.

This also avoids confusing two different and incompatible state
machines, actively connected vs accepted sockets, and adds
connection response error handling (processing "SYN/RST" of sorts).

Signed-off-by: Rémi Denis-Courmont 
Signed-off-by: David S. Miller

Phonet: provide pipe socket option to retrieve the pipe identifier

2011-03-09T19:59:32+00:00

User-space sometimes needs this information. In particular, the GPRS
context or the AT commands pipe setups may use the pipe handle as a
reference.

This removes the settable pipe handle with CONFIG_PHONET_PIPECTRLR.
It did not handle error cases correctly. Furthermore, the kernel
*could* implement a smart scheme for allocating handles (if ever
needed), but userspace really cannot.

Signed-off-by: Rémi Denis-Courmont 
Signed-off-by: David S. Miller

Documentation: Update Phonet doc for Pipe controller changes

2010-10-13T21:40:35+00:00

Updates to Phonet doc for Pipe controller 'connect' socket
implementation and changes related to socket options.

Signed-off-by: Kumar Sanghvi 
Signed-off-by: David S. Miller

Phonet: cleanup pipe enable socket option

2010-10-08T21:09:10+00:00

The current code works like this:

  int garbage, status;
  socklen_t len = sizeof(status);

  /* enable pipe */
  setsockopt(fd, SOL_PNPIPE, PNPIPE_ENABLE, &garbage, sizeof(garbage));
  /* disable pipe */
  setsockopt(fd, SOL_PNPIPE, PNPIPE_DISABLE, &garbage, sizeof(garbage));
  /* get status */
  getsockopt(fd, SOL_PNPIPE, PNPIPE_INQ, &status, &len);

...which does not follow the usual socket option pattern. This patch
merges all three "options" into a single gettable&settable option,
before Linux 2.6.37 gets out:

  int status;
  socklen_t len = sizeof(status);

  /* enable pipe */
  status = 1;
  setsockopt(fd, SOL_PNPIPE, PNPIPE_ENABLE, &status, sizeof(status));
  /* disable pipe */
  status = 0;
  setsockopt(fd, SOL_PNPIPE, PNPIPE_ENABLE, &status, sizeof(status));
  /* get status */
  getsockopt(fd, SOL_PNPIPE, PNPIPE_ENABLE, &status, &len);

This also fixes the error code from EFAULT to ENOTCONN.

Signed-off-by: Rémi Denis-Courmont 
Cc: Kumar Sanghvi 
Signed-off-by: David S. Miller

Documentation: Update Phonet doc for Pipe Controller implementation

2010-09-28T06:30:50+00:00

Updates the Phonet document with description related to Pipe controller
implementation

Signed-off-by: Kumar Sanghvi 
Acked-by: Linus Walleij 
Signed-off-by: David S. Miller

Phonet: resource routing documentation

2010-09-16T04:31:34+00:00

Signed-off-by: Rémi Denis-Courmont 
Signed-off-by: David S. Miller

trivial: Miscellaneous documentation typo fixes

2009-06-12T16:01:47+00:00

Fix various typos in documentation txts.

Signed-off-by: Matt LaPlante 
Signed-off-by: Jiri Kosina

Phonet: Simple doc fix.

2008-10-14T20:49:38+00:00

From: "Randy Macleod" 

Signed-off-by: David S. Miller

Phonet: pipe end-point protocol documentation

2008-10-05T18:16:36+00:00

Signed-off-by: Rémi Denis-Courmont 
Signed-off-by: David S. Miller