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- added info about libftdi support under win32 

git-svn-id: svn://svn.berlios.de/openocd/trunk@638 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
ntfreak 2008-05-02 09:35:48 +00:00
parent 872919e53a
commit 8bf24de7b3
3 changed files with 29 additions and 2 deletions
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7
contrib/libftdi/README Normal file
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@ -0,0 +1,7 @@
libftdi can be built to work under win32 (cygwin/mingw) after applying the patch in this directory.
The issue is caused by windows requiring usb_set_configuration to be called before the usb_claim_interface.
Spen
spen@spen-soft.co.uk

20
contrib/libftdi/libftdi-0.12_win32.patch Normal file
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@ -0,0 +1,20 @@
--- src/ftdi.c.orig Wed Apr 16 16:24:30 2008
+++ src/ftdi.c Thu May 01 20:19:46 2008
@@ -358,6 +358,17 @@
if (usb_detach_kernel_driver_np(ftdi->usb_dev, ftdi->interface) != 0 && errno != ENODATA)
detach_errno = errno;
#endif
+
+#if defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
+ if (usb_set_configuration(ftdi->usb_dev, 1) != 0) {
+ usb_close (ftdi->usb_dev);
+ if (detach_errno == EPERM) {
+ ftdi_error_return(-8, "inappropriate permissions on device!");
+ } else {
+ ftdi_error_return(-5, "unable to set configuration");
+ }
+ }
+#endif
if (usb_claim_interface(ftdi->usb_dev, ftdi->interface) != 0) {
usb_close (ftdi->usb_dev);

4
doc/openocd.texi
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@ -126,8 +126,8 @@ a FTDI FT2232 based interface:
homepage (@uref{www.amontec.com}), as the JTAGkey uses a non-standard VID/PID.
@end itemize
Please note that the ftdi2232 variant (using libftdi) isn't supported under Cygwin.
You have to use the ftd2xx variant (using FTDI's D2XX) on Cygwin.
libftdi is supported under windows. Versions earlier than 0.13 will require patching.
see contrib/libftdi for more details.
In general, the D2XX driver provides superior performance (several times as fast),
but has the draw-back of being binary-only - though that isn't that bad, as it isn't