P.S
In libusb
int usbi_handle_transfer_completion(...)
{
...
if (transfer->callback)
transfer->callback(transfer);
...
}
this transfer->callback always jump to usbredirhost.c
static void usbredirhost_control_packet_complete()
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ok, thanks!
I observe spice gtk
static int usbredir_write_callback(void *user_data, uint8_t *data, int count)
{
...
printf("data %d\n", *data);
...
}
when I redirect webcam, and using *amcap*. The data display
data 100
data 100
data 100
...
data 4
data 5
data 11
data 100
data 100
...
data 14
data
OK! in my situation, my webcam can redirect to VM, then, I open amcap and check
the code. I find that there are two ways running into the same for loop, and I'm
not sure it is normal or not?
first route
the client receive message through usbredir channel, then
1. usbredir_handle_msg
2. usbredirpa
Thanks, now I can use libusb_handle_events().
What kind of situation the code will run into
int usbredirparser_do_write(struct usbredirparser *parser_pub)
{
...
if ((parser->flags & usbredirparser_fl_write_cb_owns_buffer) &&
w != wbuf->len)
abort();
...
}
_
Thanks, now I can use libusb_handle_events().
What kind of situation the code will run into
int usbredirparser_do_write(struct usbredirparser *parser_pub)
{
...
if ((parser->flags & usbredirparser_fl_write_cb_owns_buffer) &&
w != wbuf->len)
abort();
...
}
__
what is the USB structure, flow in QEMU and spice client?
(Including host controller, peripheral bus driver...)
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>
> 2) The usbredirhost_read_guest_data() call from usbredir_handle_msg
> has a complete packet, and one which requires it to make some libusb
> call which takes one of libusb's internal locks, and for some reason
> the libusb_handle_events() call holds that lock while it is sleeping?
The usbred
And there is anther question. In the function "static gpointer
spice_usb_device_manager_usb_ev_thread()",
I use libusb_handle_events(context) to
handle events, but I only receive data from server through the function
"usbredir_read_callback()".
After 60 secs, the client send data to server thr
> > And I print the data in usbredir_write_callback() &
usbredir_free_write_cb_data()
> > ...
> > write_data = 100
> > free_data = 100
> > write_data = 17
> > write_data = 17
> > write_data = 4
> > write_data = 5
> > write_data = 11
> > free_data = 17
> > free_data = 238(error)
> >
> What are the
OK! I use spice-gtk with usb redirection 0.4.3 and trying to redirect webcam to
VM. There are some problems causing the client crashed when
usbredir_free_write_cb_data()->usbredirhost_free_write_buffer()->...try to free
data.
And I print the data in usbredir_write_callback() &
usbredir_free_wr
whether the usb 2.0 is supported in usbredirection or not?
and what is usb transmission speed depended on?
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ctrl [data]
And what's the main action and purpose of this cmd?
thanks
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Hello~
I run the two sample codes usbredirserver and usbredirtestclient. After the
client connects to the server and tpyes help, it displays a hint:
ctrl [data]
what does each tag mean?
thanks a lot!
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> Yes, in the second case qemu is the tcp client, and the ip and port number
> are that of the usbredirserver process which is acting as the usbredir-host.
that means　I have to know the IP address to describe the qemu cmdline before a
spice-client connects to spice-server. So, if I can't get IP a
> examples of the 2
> on the qemu cmdline are:
>
> -chardev spicevmc,name=usbredir,id=usbredirchardev1 -device usb-
>redir,chardev=usbredirchardev1
>
> -chardev socket,host=192.168.1.9,port=4000,id=usbredirchardev2 -device usb-
>redir,chardev=usbredirchardev2
Excuse me, the second qemu cmdline,
> Erm, no qemu implements a usbredir-guest in the form of the usb-redir
> qemu device. This qemu device uses a chardev to talk to the usbredir-host,
> one way to do this is through a spice channel to a spice-gtk using client,
> the other way is using a tcp-client-socket to usbredirserver, so
> usb
And are there any usb redirections on windows?
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> Not that comlicated, there is just a wrapper of usbredir flow
> constructed by the spice channel:num 9.
> You can view spicy-gtk as the usbredir client and the qemu/spice-server
> as the usbredirsever.
But in usb-redirection-protocol.txt and readme.txt, the definitions define
virtual machine as
In usbredir-0.4.3, there are two simple programs usbredirserver and
usbredirtestclient. Usbredirserver creates a port and enters a usb vid:pid
waiting for the connection of testclient. Usbredirtestclient enters the
matching
port and server to connect to the server.
In spice-gtk, how does the s
I use spicy to connect to a VM supporting usb redirection, but there are some
problems with usb webcam.
Plug in the webcam with usb redirection and then, I open the webcam application
(ex: skype or amcap); however, the VM only shows the first view and stop
running.
The client and the VM are alm
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