Hi, @astoffregen said in QT USB support: @Christian-Ehrlicher An usb stick This likely means a storage device but a USB stick can be: Storage Bluetooth dongle WiFi dongle Serial port etc. Depending on your exact needs, KDE's Solid framework might be of interest.

https://github.com/nwoki/usb-notifier

@Sandra_Carney QItemSelectionModel *select = ui.tree->selectionModel(); QModelIndexList l = select->selectedRows(); ... pm->mapToSource(l[...]) This is fine. You are working through selectionModel()->selectedRows() calling QProxyModel::mapToSource() on an item to get from a proxy QModelIndex to the source QModelIndex. I believe QSortFilterProxyModel::mapSelectionToSource() is just a convenience to save the two steps. E.g. QItemSelectionModel *select = ui.tree->selectionModel(); QModelIndexList sourceIndexList = pm->mapSelectionToSource(select->selection())->indexes(); Whether it's just a shortcut convenience or it's more efficient I don't know. The important thing either way is that you have to do this index mapping source model <--> proxy model indexes.

Hi, I'm the author of QtUsb. The modular version (0.5) is on beta and not available on ppa (0.4.2) yet. I'll work on that. Feel free to open issues on github if you find any bugs. Edit: it should be good for bionic and newer.

Sounds rather like a job for libusb

Hi, Because Qt is cross platform using a WinAPI is bad form. Shouldn't you switch to libusb making it cross platform?