linux.git/drivers/usb/serial, branch v2.6.12

[PATCH] USB: ftdi_sio: avoid losing received data in tty-ldisc

2005-06-09T08:38:15+00:00

ftdi_sio: Avoid losing bytes at tty-ldisc.

This patch was originally developed by Daniel Smertnig.  I
(Ian Abbott) made a few changes.  It has been tested by both
Daniel and I, at least for raw, non-canonical receive data
processing.

Here is Daniel's original description of the patch:

===
During a project in which I was using a FTDI 232BM to
transmit data at relative high speeds (625kBit/s), I
noticed a problem where data was lost even if flow
control was enabled: The FTDI-Driver receives 512 Bytes
of data over USB at a time, which consists of 8 64-Byte
packets. Subtracting the 2 bytes of status information
included in each packet this gives 496 "real" data
bytes per read.

This data is passed (indirectly, via the flip buffers)
to the tty line discipline which takes care of
throttling when there the free buffer space reaches
TTY_THRESHOLD_THROTTLE (128). Because the FTDI driver
processes up to 496 bytes at a time, throttling won't
happen in time and the line discipline will discard the
remaining bytes.

To avoid this the patch passes data in 62-byte blocks
to the tty layer and checks the available space in the
ldisc-buffers. If there isn't enough free space,
processing the rest of the data is delayed using a
workqueue.

Note: The original problem should be easily
reproducible with a userspace program which does slow &
small reads.
===

Signed-off-by: Ian Abbott 
Signed-off-by: Daniel Smertnig 
Signed-off-by: Greg Kroah-Hartman

[PATCH] USB: CP2101 Add support for flow control

2005-06-03T07:04:30+00:00

Added support to get/set flow control line levels using TIOCMGET and
TIOCMSET.
Added support for RTSCTS hardware flow control.
cp2101_get_config and cp2101_set_config modified to support long request
strings, required for configuring flow control.

Signed-off-by: Craig Shelley craig@microtron.org.uk
Signed-off-by: Greg Kroah-Hartman

[PATCH] USB: add Option Card driver

2005-06-03T07:04:29+00:00

This patch adds a new driver for "Option" cards.  This is a GSM data card,
controlled by three "serial ports" which are connected via an OHCI adapter,
all located on an oversized PC-Card.  It's sold by several GSM service
providers.

Traditionally, this card has been accessed via the standard serial driver
and appropriate vendor= and product= options.  However, testing has
revealed several problems with this approach, including hung data transfers
and lost data blocks when receiving.

Therefore, I've written a separate driver.

Signed-off-by: Matthias Urlichs 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

[PATCH] USB: fix usb-serial generic initialization

2005-05-31T21:13:59+00:00

At module load time, if a generic device is found, the tty information
for the device is not set up properly (as the tty structures aren't initialized
yet.)  This can cause big problems for things like udev.  This patch fixes this.

Thanks to Kay Sievers for the original patch for this problem.

Signed-off-by: Greg Kroah-Hartman

[PATCH] USB: ftdi_sio: new PID for ELV UM100

2005-05-31T21:13:59+00:00

ftdi_sio: Add PID for "ELV USB Module UM100".
PID sent by Armin Laugher.

Signed-off-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman

[PATCH] USB: cypress_m8: add support for the DeLorme Earthmate lt-20

2005-05-17T04:44:26+00:00

This patch adds support for the DeLorme Earthmate lt-20 to the
cypress_m8 driver.  The device was tested and found to be compatible
with the cypress_m8 driver.  This is a resend with the complete patch
which properly compiles.

Adds support for the DeLorme Earthmate lt-20 to the cypress_m8 driver.

Signed-off-by: Lonnie Mendez 
Signed-off-by: Greg Kroah-Hartman

[PATCH] USB cypress_m8: update kernel driver with current source

2005-05-04T06:31:52+00:00

Fixed problem where setting or retreiving the serial config would fail
with EPIPE.  Removed CRTS toggling so the driver behaves more like other
usbserial adapters.  Issued new interval of 1ms instead of the default
bInterval.  As a result, transfer speed has been substantially
increased.  From avg. 850bps to avg. 3300bps.  Also added new module
parameter 'interval' to tweak the interval in case this change causes
problems for someone.  Cleaned up code and formatting issues so source
is more readable.  Replaced the C++ style comments.  Various other code
cleanups.

Signed-off-by: Lonnie Mendez 
Signed-off-by: Greg Kroah-Hartman

[PATCH] USB: Spelling fixes for drivers/usb.

2005-05-04T06:31:52+00:00

Here are some spelling corrections for drivers/usb.

cancelation -> cancellation
succesful -> successful
cancelation -> cancellation
decriptor -> descriptor
Initalize -> Initialize
wierd -> weird
Protocoll -> Protocol
occured -> occurred
successfull -> successful
Procesing -> Processing
devide -> divide
Isochronuous -> Isochronous
noticable -> noticeable
Basicly -> Basically
transfering -> transferring
intialize -> initialize
Incomming -> Incoming
additionnal -> additional
asume -> assume
Unfortunatly -> Unfortunately
retreive -> retrieve
tranceiver -> transceiver
Compatiblity -> Compatibility
Incorprated -> Incorporated
existance -> existence
Ununsual -> Unusual

Signed-off-by: Steven Cole 
Signed-off-by: Greg Kroah-Hartman

[PATCH] USB: ftdi_sio redundant macro removal

2005-05-04T06:31:50+00:00

[ftdi_sio] Replaced redundant INTERFACE_A and INTERFACE_B macros with
the equivalent PIT_SIOA and PIT_SIOB macros.

Signed-off-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman

[PATCH] USB: VID/PID updates for ftdi_sio driver

2005-05-04T06:31:50+00:00

Some VID/PID updates for the ftdi_sio driver:

* The "Gude Analog- und Digitalsysteme GmbH" entries were missing from
  the "combined" table.
* Replaced FTDI_8U232AM_ALT_ALT_PID with 3 PIDs for devices from
  4n-galaxy.de.
* Removed redundant FTDI_RM_VID and renamed FTDI_RMCANVIEW_PID to
  FTDI_RM_CANVIEW_PID.
* Added VID/PID for serial converter in Mobility Electronics EasiDock
  USB 200 (mentioned by Gregory Schmitt).
* Added PID for Active Robots USB comms board (mentioned by John Koch).

Signed-off-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman 

diff -ur a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c