Help writing my first USB driver ( no user space code needed )

Help writing my first USB driver ( no user space code needed )

[kernel.org]

hello,

I am trying to write a device driver for a USB device that is not currently
supported by Linux. Trouble is all the examples I have found so far (
usb-skel.c and others ) give an example of a driver that is a middle man
between a userspace application and the device. So there are no examples on
how to actually send the data to the device.

In my case, the device I am using simply uses the machine it is connected
to as an internet connection. The driver should send/receive data from the
device and allow the device to go and make TCP connections to the internet.

( The device is intelligent ).

Are there any examples that are available that would help me get started on
this?

Basically the USB device sends plain text with words like "connect, send,
recv, close" and the driver needs to make connections, send/receive data
(TCP ) and close the connection.

Thanks,

David

Re: Help writing my first USB driver ( no user space code needed )

[Daniel Drake]

kernel.org@spam.bounceme.net wrote:
> I am trying to write a device driver for a USB device that is not currently
> supported by Linux. Trouble is all the examples I have found so far (
> usb-skel.c and others ) give an example of a driver that is a middle man
> between a userspace application and the device. So there are no examples on
> how to actually send the data to the device.
> 
> In my case, the device I am using simply uses the machine it is connected
> to as an internet connection. The driver should send/receive data from the
> device and allow the device to go and make TCP connections to the internet.

You probably want to do this in userspace using libusb. I would be 
surprised if there is any sane way of creating and managing TCP 
connections from inside the kernel.

Daniel