> Vendor: Shuttle
> Model: PN18G (although it doesn't seem to be marked as such)
> USB Device ID: 07b8:6001
> Chip: ZD1211B
> RF: AL2230S
>
> The chip description from dmesg:
>
> [ 1378.268000] zd1211rw 5-6:1.0: zd1211b chip 07b8:6001 v4810 high 00-12-0e
> AL2230S_RF pa0 -----
>
> It is a USB device designed to be connected directly to a pin header or other
> internal connector. It has the large coax antenna mount, and also provides an
> alternative U.FL connector that a pigtail may be attached to.
I know it, I have the older product in my Shuttle. (Actually this
was the device that started me to go into this.)
> Anyway, it looks like this is a re-use of a previously existing device ID. I
> had to modify the driver to get it working (patch attached).
We have seen this now several times. Zydas/Atheros told us that
this shouldn't happen, because this was the only method, we have
been aware to distinguish between both products.
> I hope this is enough info to get this working in mainline.
Not really, we need to find another way to identify the chip.
> BTW, it would be nice if the driver printed an error message if a ZD1211 is
> assumed but the chip is actually a ZD1211B, or vice-versa. It currently fails
> silently. I'm not sure if there is a good way to determine at runtime what
> kind
> of chip you are actually talking to ... ?
That's exactly the problem. The problem is also that resetting the
device doesn't work reliably. We need to work on it.
> static struct usb_device_id usb_ids[] = {
> /* ZD1211 */
> { USB_DEVICE(0x0ace, 0x1211), .driver_info = DEVICE_ZD1211 },
> - { USB_DEVICE(0x07b8, 0x6001), .driver_info = DEVICE_ZD1211 },
> + /* Work-around for Shuttle PN18G, which re-uses this device ID: */
> + { USB_DEVICE(0x07b8, 0x6001), .driver_info = DEVICE_ZD1211B },
> { USB_DEVICE(0x126f, 0xa006), .driver_info = DEVICE_ZD1211 },
> { USB_DEVICE(0x6891, 0xa727), .driver_info = DEVICE_ZD1211 },
> { USB_DEVICE(0x0df6, 0x9071), .driver_info = DEVICE_ZD1211 },
--
Uli Kunitz
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