On Mi, 14.02.24 20:24, Muni Sekhar (munisekhar...@gmail.com) wrote: > HI all, > > USB devices can have multiple interfaces (functional units) that serve > different purposes (e.g., data transfer, control, audio, etc.). > > Each interface can have an associated string descriptor (referred to > as iInterface). The string descriptor provides a human-readable name > or description for the interface. > > >From user space service utility, How to scan all the USB devices > connected to the system and read each interface string > descriptor(iInterface) and check whether it matches "Particular > String" or not.
You can use sd-device.h, allocate an sd_device_enumerator_new(), then apply some filter via sd_device_enumerator_add_match_sysattr() and then enumerate through it via sd_device_enumerator_get_device_first()/sd_device_enumerator_get_device_next(). Lennart -- Lennart Poettering, Berlin
