Takashi Iwai a écrit :
At Tue, 10 Jun 2008 11:49:24 +0200, Emmanuel Kasper wrote:
Hello With a couple of other french folks, we are building a kind of webshop for Linux/FreeBSD compatible hardware. We will reference only devices which work with a free driver, so no nvidia binary thingie or atheros
HAL.
Based on the information found on the alsa wiki we plan to reference the following sound devices:
M-Audio Audiophile 24/96 ( snd-ice1712 driver ) Terratec AUREON 5.1 M-Audio Fast Track usb Hercules Muse Pocket LT Ion TTUSB usb turnable ( these 4 working with snd-usb-driver )
We would be also interested to indicate on each product description, if the vendor of the product, or the chipset maker for that matters had been helpful with developers trying to write a free driver. So for the devices mentionned above, was any of the vendor helpful by providing programming documentation or sample hardware ?
We have a good contact with M-Audio. The above two devices were provided once for testing by M-Audio indeed.
The datasheet is another question -- for USB devices, it's often harder than PCI devices (by unknown reasons).
Then I will label M-audio devices "friendly".
Terratec Aureon 5.1 (which model, BTW?) isn't well tested by developers. We had once good contact with Terratec, and lost again.
Sorry I dropped a part of the name. The vendor name is Terratec AUREON 5.1 USB MKII.
AFAIK, no one had a contact with Hercules. I don't know about Ion. Possibly Clemens had any contact? But, if the USB device works "as is", then it's all fine, even without a datasheet or a test device. It means that the device is compliant to USB-standard protocol. The bad case is that the device requires special vendor-specific protocols (often called "advanced mode").
From what I have seen the Hercules Muse Pocket LT and the Ion TTUSB usb turnable both work "as is". I think I'm going to label "friendly" standard usb sound devices which work "as is" without requiring an entry in usbquirks.h (which does not mean the opposite will mean automatically "unfriendly" )
Thanks for these informations and also for people who replied to me off-list.