Thanks xiaofan
The usb device has been fixed by the chip romcode, so there is
little chance for switching to HID.
But can I implement a usb-serial driver with libusb, which just
work like usbser.sys?
I will check the libusb, thank you!
On Thu, Jul 25, 2013 at 10:48 AM, Xiaofan Chen <xiaofanc@xxxxxxxxx> wrote:
> On Wed, Jul 24, 2013 at 8:11 PM, Yingchun Li <sword.l.dragon@xxxxxxxxx> wrote:
>> Hi,
>> I have a cdc-acm usb device, used for transfering data to/from windows PC,
>> for windows PC, and I use the Documentation/usb/linux-cdc-acm.inf to load the
>> windows driver(which is the usbser.sys).
>> On PC, there is an application use the COM port to transfer the data.
>> During transfer, the windows happened blue screen(BSOD) randomly, sometimes
>> one day, sometimes a few hours. I have the core dump, if needed I can post it.
>> It seems that the usbser.sys is buggy and problematic,
>> http://www.microchip.com/forums/m469465.aspx
>> But I am not familiar with windows, could you give me some advice? and
>> is there an open soruce driver work like usbser.sys?
>
> As mentioned in the Microchip forum thread, I will suggest you to switch your
> device to use either HID or vendor specific device.
>
> For HID, there is a cross platform HIDAPI which you can use.
>
> For vendor specific device, you can use libusb-1.0/libusbx which is
> a cross-platform library. Under Windows, libusbx supports either
> Microsoft's WinUSB driver or open-source driver like libusb-win32
> device driver or libusbK device driver.
>
> --
> Xiaofan
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