Alan Stern 写道:
> On Tue, 9 Jan 2007, xiaoxin liu wrote:
>
>
>> Hi, Alan
>> Thanks for your reply.
>> I still have some questions as follows:
>>
>
>
>>> Your driver must keep the endpoint queue full at all times. In practice
>>&g
Hi, Alan
Thanks for your reply.
I still have some questions as follows:
Alan Stern 写道:
> On Mon, 8 Jan 2007, xiaoxin liu wrote:
>
>
>> Hi, all
>>
>> I am new to usb kernel development.
>> I am not clear enough to the process of the submission of Isochronou
Hi, all
I am new to usb kernel development.
I am not clear enough to the process of the submission of Isochronous
transfer URB in Linux kernel.
In Solaris, while doing isochronous transfer, user application just need
to submit one isochronous urb, "ONLY ONE",then the host controller
driver will d
Hi, everyone
I have got a stupid question.
If I only call ioctl(fd, USBDEVFS_SUBMITURB, ...) without following call
ioctl(fd, USBDEVFS_REAPURB, ...), what is the result? Can I receive data ?
Thanks,
Xiaoxin
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Alan Stern 写道:
> On Tue, 28 Nov 2006, xiaoxin liu wrote:
>
>
>> Hi, Currently I got a philips webcam (type 740), which can be driven by
>> pwc in Linux.
>>
>> Now I want to write my own program to test the isochronus transfer
>> function of the device, not
Hi, Currently I got a philips webcam (type 740), which can be driven by
pwc in Linux.
Now I want to write my own program to test the isochronus transfer
function of the device, not using the pwc driver.
So I found out the device node in /proc/bus/usb/* and open it, then use
such an ioctl(fd, USBD
