Hello there!
On Sun, Sep 7, 2014 at 1:39 PM, Daniel Mack daniel@zonque.org wrote:
On 09/07/2014 01:30 PM, humbert.olivier.1@free.fr wrote:
if that can help, we had an user on http://www.linuxmao.org with an EIE PRO. Here you have his lsusb -v :
Bus 001 Device 006: ID 09e8:0010 AKAI Professional M.I. Corp. Couldn't open device, some information will be missing Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 255 Vendor Specific Class bDeviceSubClass 255 Vendor Specific Subclass bDeviceProtocol 255 Vendor Specific Protocol
According to the tech specs, this should be a USB hub, but it isn't. Or is this just one of the sub-devices? What does 'lsusb -t' say, and does Linux see something like a mouse or mass storage device when connected to one of the hub ports?
Assuming that's just the audio part ...
Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 5 Transfer Type Isochronous Synch Type Asynchronous Usage Type Data wMaxPacketSize 0x009c 1x 156 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 4 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 4So at least, they're not trying to hide class-specific endpoint descriptors here, which what I've been hoping for.
I guess someone has to trace the traffic spoken to this device by the Windows driver. I take it this thing doesn't work on OS X with a 3rd party driver?
I have analyzed the protocol more than a half year ago. I even tried to create a linux driver around it but had to stop due to lack of time. I hope I can continue working on it in November again.
I have published what I have done so far to github few seconds ago if anyone wants to have a look or perhaps contribute.
https://github.com/mmm444/eie-pro-linux
I can write more text about the protocol if someone is interested.
Regards,
Michal