[OpenIndiana-discuss] USB devices with "ZeroCD(tm)" feature support.

[Carlos Almeida]

  one ISP from Portugal wants to add official support for OpenIndiana to 
their new device based on anyData ADU-520a, so they ask me to check if 
the device is currently supported, however this is another device with 
the "ZeroCD(tm)" feature, so when you plug it,  defaults to a USB device 
class 8  (Storage), in place of USB device class 2 (communications 
device), I had this same problem on my own device some months ago a 
Huawei E169, but on this one is possible to disable the  SD micro card 
with an AT command, and after that the device works with usbsacm(7D) 
driver without a problem.
  As far I understand this kind of devices are currently a pain to work 
out-of-the-box on OpenIndiana,  Linux seems to handle this with 
something they call usb-mode-switch, so its possible by udev rules 
switch from class 8 to class 2 device and vice-versa, also another way 
seems to be by using an USB blacklist, and the storage part of the 
device is black listed, how can we use in OpenIndiana this kind of 
devices ? maybe we can implement a way to handle this kind of devices, I 
really like to check if this anyData ADU-520a works with usbsacm(7D), I 
also understand that maybe this is more a issue for Illumos guys, but I 
bet most of them also read this list.

  Regards,
  Carlos Almeida,