There are cheap clones of simple CMSIS-DAP interfaces from China.

So far it's untested so more info later.

# wch.cn WCH-Link CMSIS-DAP (clone)
SUBSYSTEMS=="usb",\
    ATTRS{idVendor}=="2a86",\
    ATTRS{idProduct}=="8011",\
    MODE:="0666"
KERNEL=="ttyACM*",\
    ATTRS{idVendor}=="2a86",\
    ATTRS{idProduct}=="8011",\
    GROUP:="dialout",\
    MODE:="0666"

Test

openocd -c "adapter driver cmsis-dap; cmsis_dap_vid_pid 0x2a86 0x8011" -c "adapter speed 500" -c "transport select swd"

No device connected

Open On-Chip Debugger 0.12.0-rc2+dev-00012-g4e077fdda (2022-11-12-16:05)
Licensed under GNU GPL v2
For bug reports, read
        http://openocd.org/doc/doxygen/bugs.html
adapter speed: 500 kHz

swd
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : CMSIS-DAP: SWD supported
Info : CMSIS-DAP: FW Version = 2.0.0
Info : CMSIS-DAP: Interface Initialised (SWD)
Info : SWCLK/TCK = 1 SWDIO/TMS = 1 TDI = 0 TDO = 0 nTRST = 0 nRESET = 1
Info : CMSIS-DAP: Interface ready
Info : clock speed 500 kHz
Warn : gdb services need one or more targets defined

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