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USB serial update

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2219 42af7a65-404d-4744-a932-0658087f49c3
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patacongo 2009-11-04 14:54:12 +00:00
parent 041200d562
commit b7511eacdb
2 changed files with 55 additions and 30 deletions
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83
examples/README.txt
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@ -332,48 +332,73 @@ examples/uip
examples/usbserial
^^^^^^^^^^^^^^^^^^
This is another implementation of "Hello, World" but this one uses
a USB serial driver. Configuration options can be used to simply
the test. These options include:
TARGET CONFIGURATION:
CONFIG_EXAMPLES_USBSERIAL_INONLY
Only verify IN (device-to-host) data transfers. Default: both
CONFIG_EXAMPLES_USBSERIAL_OUTONLY
Only verify OUT (host-to-device) data transfers. Default: both
CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL
Send only small, single packet messages. Default: Send large and small.
CONFIG_EXAMPLES_USBSERIAL_ONLYBIG
Send only large, multi-packet messages. Default: Send large and small.
This is another implementation of "Hello, World" but this one uses
a USB serial driver. Configuration options can be used to simply
the test. These options include:
In additional to the target device-side example, there is also
a host-side application in this directory. It can be compiled under
Linux or Cygwin as follows:
CONFIG_EXAMPLES_USBSERIAL_INONLY
Only verify IN (device-to-host) data transfers. Default: both
CONFIG_EXAMPLES_USBSERIAL_OUTONLY
Only verify OUT (host-to-device) data transfers. Default: both
CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL
Send only small, single packet messages. Default: Send large and small.
CONFIG_EXAMPLES_USBSERIAL_ONLYBIG
Send only large, multi-packet messages. Default: Send large and small.
cd examples/usbserial
make -f Makefile.host TOPDIR=../../.
If CONFIG_USBDEV_TRACE is enabled (or CONFIG_DEBUG and CONFIG_DEBUG_USB), then
the example code will also manage the USB trace output. The amount of trace output
can be controlled using:
This will generate a small program called 'host'. Usage:
CONFIG_EXAMPLES_USBSERIAL_TRACEINIT
Show initialization events
CONFIG_EXAMPLES_USBSERIAL_TRACECLASS
Show class driver events
CONFIG_EXAMPLES_USBSERIAL_TRACETRANSFERS
Show data transfer events
CONFIG_EXAMPLES_USBSERIAL_TRACECONTROLLER
Show controller events
CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS
Show interrupt-related events.
1. Build the examples/usbserial target program and start the target.
Error results are always shown in the trace output
2. Wait a bit, then do enter:
HOST-SIDE TEST PROGRAM
dmesg
In additional to the target device-side example, there is also a
host-side application in this directory. This host side application
must be executed on a Linux host in order to perform the USBSERIAL
test. The host application can be compiled under Linux (or Cygwin?)
as follows:
At the end of the dmesg output, you should see the serial
device was successfully idenfied and assigned to a tty device,
probably /dev/ttyUSB0.
cd examples/usbserial
make -f Makefile.host TOPDIR=../../.
3. Then start the host application:
RUNNING THE TEST
./host [<tty-dev>]
This will generate a small program called 'host'. Usage:
Where:
1. Build the examples/usbserial target program and start the target.
<tty-dev> is the USB TTY device to use. The default is /dev/ttyUSB0.
2. Wait a bit, then do enter:
The host and target will exchange are variety of very small and very large
serial messages.
dmesg
At the end of the dmesg output, you should see the serial
device was successfully idenfied and assigned to a tty device,
probably /dev/ttyUSB0.
3. Then start the host application:
./host [<tty-dev>]
Where:
<tty-dev> is the USB TTY device to use. The default is /dev/ttyUSB0.
The host and target will exchange are variety of very small and very large
serial messages.
examples/usbstorage
^^^^^^^^^^^^^^^^^^^

2
examples/usbserial/host.c
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@ -159,7 +159,7 @@ static void show_usage(const char *progname, int exitcode)
int main(int argc, char **argv, char **envp)
{
struct termios tty;
#ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY
#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY
ssize_t nbytes;
#endif
#ifdef COUNTER_NEEDED