Package: libserialport0 Version: 0.1.1-4 Upstream bug report: https://sigrok.org/bugzilla/show_bug.cgi?id=1687 Upstream fix to apply: https://sigrok.org/gitweb/?p=libserialport.git;a=commitdiff;h=6f9b03e597ea7200eb616a4e410add3dd1690cb1
Rationale: This issue makes the library inoperable on any recent kernel, even the current linux LTS version 5.10.46-4. Any program that opens a serial port using sp_open() will fail. If LIBSERIALPORT_DEBUG is set in the environment, the following relevant messages will appear: sp: sp_open(0x55f7f28596b0, 0x3) called. sp: Opening port /dev/ttyACM0. sp: get_config(0x55f7f28596b0, 0x7ffc8c7459e0, 0x7ffc8c7459b0) called. sp: Getting configuration for port /dev/ttyACM0. sp: get_flow(3, 0x7ffc8c7459e0) called. sp: Getting advanced flow control. sp: sp_last_error_message() called. sp: sp_last_error_message returning Inappropriate ioctl for device. sp: get_flow returning SP_ERR_FAIL: Getting termiox failed: Inappropriate ioctl for device. sp: sp_free_error_message(Inappropriate ioctl for device) called. sp: sp_free_error_message returning. sp: get_config returning SP_ERR_FAIL. sp: sp_close(0x55f7f28596b0) called. sp: Closing port /dev/ttyACM0. sp: sp_close returning SP_OK. sp: sp_open returning SP_ERR_FAIL. Kernel patch causing the change: https://www.spinics.net/lists/linux-serial/msg41926.html Lines causing the bug: https://sigrok.org/gitweb/?p=libserialport.git;a=blob;f=serialport.c;h=e6097eeda975f914ec7b960f72c9e2df546e8281;hb=HEAD#l1774
