Hans de Goede & Gerd Hoffmann:
theses days i try to migrate the usbredir lib to Windows
the usbredir-0.6/usbredirserver/usbredirserver.c connect to qemu's
redirect channel and spicec connect to the guest.
the usbredirserver works smooth in Linux, spicec show the usb disk works
well.
when i compile usbredir on Windows, usbredirserver connect and open usb
device ok,
qemu's guest(windows xp) in spicec can detect the usb device, but only
show unkown usb device,
i open the device in windows's hardware manager, and found the pid and vid
of the device is 000.
i debug the qemu's redirect code(hw/usb/hcd_ehci.c), and found the diff
between linux's and windows's when usbredirserver connect
is here:
-----------------------------------------------------------------------------------------
static int ehci_execute(EHCIPacket *p, const char *action)
...............
p->pid = ehci_get_pid(&p->qtd);
p->queue->last_pid = p->pid;
endp = get_field(p->queue->qh.epchar, QH_EPCHAR_EP); //When windows
it always return 0
///while Linux it will return 0, 1 or 2
ep = usb_ep_get(p->queue->dev, p->pid, endp);
-------------------------------------------------------------------------------------------
i found the qh.epchar read from dma, but can not find who write it,
can you explain it the flow of the function.
how doest usbredirect control the dma ?
thanks you tow very much.
_______________________________________________
Spice-devel mailing list
Spice-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/spice-devel
