Heinrich Langos wrote:
On Mon, Mar 23, 2009 at 09:18:56AM +0100, Martin Emrich wrote:
af9015 USB device is that it seems to support USB 1.1 under Windows with a special driver:
I think all (in recent 2 year or so) Windows drivers will support USB1.1. Windows driver is provided by Afatech, device manufacturers only adds correct USB IDs and IR-table for remote they are using. You can download this WHQL-driver from Afatech www-site and use it instead.
Interesting. May be worth reverse engineering. Does anybody know if running windows in a virtualbox with USB pass-through allow to sniff the usb traffic?
I think yes. Usually we use SniffUsb2.0 sniffer in real Windows box or virtual box using Vmware (supports USB2.0).
BTW: I didn't know that there was a manufacturer who made Linux support such a prominent feature. Nice!
So I think it's just a question of the right firmware; the linux driver does not support hardware PID filters (the driver says something like "Found device in WARM state, disabling PID filter").
Linux driver supports PID-filtering (USB1.1). There is no any check in driver against firmware version used, PID-filter should be available always. For dual tuner devices there is no PID-filter for 2nd tuner and driver will disable 2nd tuner in that case if only USB1.1 port is available.
Mine says:
[27648.472519] dvb-usb: found a 'Afatech AF9015 DVB-T USB2.0 stick' in cold state, will try to load a firmware [27648.472598] firmware: requesting dvb-usb-af9015.fw [27648.500072] dvb-usb: downloading firmware from file 'dvb-usb-af9015.fw' [27648.567057] dvb-usb: found a 'Afatech AF9015 DVB-T USB2.0 stick' in warm state. [27648.567182] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. ...
I don't know if it is just a question of the firmware, or if different sticks with the AF9015 come with support circuitry that may or may not support PID filtering.
@Antti: Do you know?
All AF9015 devices supports PID-filtering by HW. And both Windows and Linux driver supports also.
regards Antti