- **status**: new --> closed
- **Resolution**:  --> review.openocd.org/6331
- **Type**:  --> bug
- **Comment**:

yes, I'm closing it.



---

** [tickets:#308] ST-link connect issue using latest libusb-1.0.dll**

**Status:** closed
**Milestone:** 0.11.0
**Created:** Fri Jun 11, 2021 10:12 AM UTC by asier70
**Last Updated:** Wed Apr 20, 2022 04:39 PM UTC
**Owner:** nobody


For years I compile openocd and libusb-1.0 by myself from the newest sources 
(cross-compilation under ubuntu on Windows 10 for windows 10 x64). I noticed 
problem with the newest libusb-1.0.dll - I can't connect to st-link (ver. 2.1 
and also 3). Log ends with:
~~~
Debug: 46 239 stlink_usb.c:3420 stlink_open(): stlink_open
Debug: 47 243 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x3744 serial:
Debug: 48 248 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x3748 serial:
Debug: 49 255 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x374b serial:
Debug: 50 261 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x374d serial:
Debug: 51 269 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x374e serial:
Debug: 52 275 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x374f serial:
Debug: 53 280 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x3752 serial:
Debug: 54 289 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x3753 serial:
~~~
and openocd is exited without any information like "open failed". Connecting to 
DAP-Link v2 with bulk works. This issue is for latest libusb-1.0.dll version 
1.0.24.11627 (and 1.0.24.11623 as I checked).
For older version 1.0.24.11608 all works fine:
~~~
Debug: 46 217 stlink_usb.c:3420 stlink_open(): stlink_open
Debug: 47 221 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x3744 serial:
Debug: 48 226 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x3748 serial:
Debug: 49 234 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x374b serial:
Debug: 50 240 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x374d serial:
Debug: 51 246 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x374e serial:
Debug: 52 254 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x374f serial:
Debug: 53 260 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x3752 serial:
Debug: 54 269 stlink_usb.c:3432 stlink_open(): transport: 4 vid: 0x0483 pid: 
0x3753 serial:
Info : 55 1722 stlink_usb.c:1318 stlink_usb_version(): STLINK V2J37M27 (API v2) 
VID:PID 0483:3752
Debug: 56 1729 stlink_usb.c:1543 stlink_usb_exit_mode(): MODE: 0x01
~~~
Any suggestions?


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