stlink does not see the Nucleo programmer with changed type

[LonelyWolf]

• Programmer/board type: Nucleo Stlink/v2-1-onboard
• Programmer firmware version: STSW-LINK007 2.34.25
• Operating system: all Linux and Windows
• Stlink tools version and/or git commit hash: latest (as for 25/07/2019)
• Stlink commandline tool name: all

At some point in the ST-Link Utility (programmer firmware upgrade) became available the option to select the device type, which allows to choose between STM32 Debug+Mass storage+VCP and STM32 Debug+VCP. In short, it became possible to disable the "Mass storage" functionality of the Nucleo programmer. So I did. As a result, stlink utilities stopped finding the programmer. Like this:

# st-info --probe
Found 0 stlink programmers

After investigating the issue, it became clear that the USB device with disabled Mass storage functionality have other PID (0x3752 instead of 0x374B).

I added one more define of 0x3752 to the include/stlink/usb.h, and then applied it to the src/usb.c file in the same way as the existing STLINK_USB_PID_STLINK_NUCLEO.

Recompiled the stlink and voila:

# st-info --probe
Found 1 stlink programmers
... bla bla bla ...

Not sure if it could be done in the way as I did... Therefore I did not make a pull-request, but tried to depict the problem in words.

Thank you,
The stlink project maintainers