On Wed, 7 Apr 2010, Hendrik Sattler wrote: > Hi, > > I am currently trying a setup of using dummy_hcd with f_obex and get get > freezes each time. > Here's what I do (linux-2.6.33): > $ modprobe dummy_hcd > $ modprobe g_serial use_acm=0 use_obex_1 n_ports=1 > > I then attach a local version of obexpushd (I'm the author) to /dev/ttyGS0 and > when looking for it, I get: > Found 1 usb devices. > Device 0: > Manufacturer: Linux 2.6.33 with dummy_udc > Product: Gadget Serial v2.4 > Serial: (null) > Description: CDC Object Exchange (OBEX) > > However, when trying to transfer anything with obexftp (e.g. something simple > like a directory listing), I immediately get a hard lock-up. > > When doing the same thing with a connected SE K800i, it works just fine. > > Any ideas? I have never tried using dummy-hcd with g-serial. It's possible that either g_serial or the host-side driver makes assumptions that are usually correct for normal controllers but aren't correct for dummy-hcd, although I can't think of any examples offhand. What happens if you don't use obex? For instance, if you simply attach a minicom session to each end of the emulated serial connection? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
