Hi Mark! On Tue, Nov 04, 2025 at 07:01:00AM -0000, Mark W wrote: > I'm attempting to use openocd to connect to a STLink V3Mods using a Raspberry > Pi > 5 (arm64) host. > > I've built OpenOCD on the host using the cloned master repo from > [2]https://github.com/openocd-org/openocd. > As im guessing this could be libusb related, ive tried the os repo version of > libusb, and also built libusb from the github master. > > The errors i see are (libusb also has debug output enabled): > ... > Debug: 126 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: > 0x3757 serial: > libusb: warning [libusb_init] installing new context as implicit default > libusb: error [submit_bulk_transfer] submiturb failed, errno=2
This doesn't look like something OpenOCD on arm64 specific, in fact, it's widely tested and used on modern Arm devices. There must be something else at play, probably even on hardware level. Is there anything new appearing in dmesg when that error happens probably? Have you tried starting OpenOCD without target connected to stlink? > I have also tested the exact same stlink and openocd version with a amd64 PC > (Debian Linux) host, and Raspberry Pi 3 arm32 (rpi os). Everything works fine > with these. Good you have those data points for reference. I would try comparing strace logs for the working and non-working case, it might give additional clues. -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:[email protected] --- **[tickets:#462] Problems on arm64 host** **Status:** new **Milestone:** 0.12.0 **Created:** Tue Nov 04, 2025 07:00 AM UTC by Mark W **Last Updated:** Tue Nov 04, 2025 07:00 AM UTC **Owner:** nobody I'm attempting to use openocd to connect to a STLink V3Mods using a Raspberry Pi 5 (arm64) host. I've built OpenOCD on the host using the cloned master repo from https://github.com/openocd-org/openocd. As im guessing this could be libusb related, ive tried the os repo version of libusb, and also built libusb from the github master. The errors i see are (libusb also has debug output enabled): ~~~ Debug: 111 4 target.c:1598 handle_target_init_command(): Initializing targets... Debug: 112 4 mem_ap.c:61 mem_ap_init_target(): [stm32h7x.ap2] mem_ap_init_target Debug: 113 4 semihosting_common.c:109 semihosting_common_init(): Debug: 114 4 stlink_usb.c:5120 stlink_dap_init(): stlink_dap_init() Debug: 115 4 stlink_usb.c:3732 stlink_open(): stlink_open Debug: 116 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3744 serial: Debug: 117 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3748 serial: Debug: 118 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374b serial: Debug: 119 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374d serial: Debug: 120 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374e serial: Debug: 121 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x374f serial: Debug: 122 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3752 serial: Debug: 123 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3753 serial: Debug: 124 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3754 serial: Debug: 125 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3755 serial: Debug: 126 4 stlink_usb.c:3744 stlink_open(): transport: 4 vid: 0x0483 pid: 0x3757 serial: libusb: warning [libusb_init] installing new context as implicit default libusb: error [submit_bulk_transfer] submiturb failed, errno=2 Debug: 127 10 stlink_usb.c:686 jtag_libusb_bulk_transfer_n(): ERROR, failed to submit transfer 0, error -1 libusb: warning [libusb_init] installing new context as implicit default libusb: error [submit_bulk_transfer] submiturb failed, errno=2 Debug: 128 3482 stlink_usb.c:686 jtag_libusb_bulk_transfer_n(): ERROR, failed to submit transfer 0, error -1 Error: 129 3482 stlink_usb.c:3470 stlink_usb_usb_open(): read version failed libusb: error [submit_bulk_transfer] submiturb failed, errno=2 Debug: 130 3482 stlink_usb.c:686 jtag_libusb_bulk_transfer_n(): ERROR, failed to submit transfer 0, error -1 Debug: 131 3482 command.c:453 jim_exec_command(): Command 'init' failed with error code -4 User : 132 3482 command.c:531 command_run_line(): openocd_erase.cfg:12: Error: in procedure 'script' at file "embedded:startup.tcl", line 72 at file "openocd_erase.cfg", line 12 ~~~ I have also tested the exact same stlink and openocd version with a amd64 PC (Debian Linux) host, and Raspberry Pi 3 arm32 (rpi os). Everything works fine with these. Any ideas as to what the problem may be here? Thanks in advance. --- Sent from sourceforge.net because [email protected] is subscribed to https://sourceforge.net/p/openocd/tickets/ To unsubscribe from further messages, a project admin can change settings at https://sourceforge.net/p/openocd/admin/tickets/options. Or, if this is a mailing list, you can unsubscribe from the mailing list.
