https://bugzilla.kernel.org/show_bug.cgi?id=212045 Bug ID: 212045 Summary: dwc2 gadget mode read call blocks Product: Drivers Version: 2.5 Kernel Version: 5.9 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: USB Assignee: drivers_usb@xxxxxxxxxxxxxxxxxxxxxx Reporter: tomasz@xxxxxxxxxxxx Regression: No When implementing USB gadget on Odroid N2 I write descriptors for two endpoints so I get ep0, ep1 and ep2 files. I open those files and try to read from ep0 and ep2. While ep0 more or less works, for ep2 I get weird behaviour: the select() call returns 1 indicating that there is data to read and then read() call blocks. It happens even if I set the file descriptor to O_NONBLOCK. Here is the kernel log: https://pastebin.pl/view/aaa2d7f0 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
