From: Danny Budik <dbudik@ist-traffic.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: Accessing usb devices with USBDEVFS
Date: Fri, 05 May 2006 20:45:30 +0000 [thread overview]
Message-ID: <445BB96A.5040300@ist-traffic.com> (raw)
In-Reply-To: <44525468.5030106@ist-traffic.com>
>>>Recent systems don't use /proc for usb access anymore and real device
>>>nodes in /dev/bus/usb instead. HAL sends "usbraw" device anouncements with
>>>"linux.device_file" as a property when the device is created.
>>>
>>>Kay
I looked at the hal properties of my device and there is no
linux.device_file property. Does this mean that my device is not
"usbraw" enabled?
>>So is there a way then to read from the /dev/bus/usb? Like I mentioned
>>in the parent post, I am just using fopen, and the functions provided in
>>usbdevice_fs.h and usb.h to read data from the usb device. The device is
>>a proprietary sensor that my company makes. Is there a
>>manual/documentation about how to do this the more "modern" way?
>
>
> No, that's still the correct way. If you use libusb, none of your code
> changes at all. If you are using "raw" usbfs, then just open a
> different file.
>
> Hope this helps,
>
> greg k-h
>
>
How do I use the "raw" usbfs? I tried reading from the /dev/bus/usb file
and got a bind - address already in use error.
Danny
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next prev parent reply other threads:[~2006-05-05 20:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-28 17:44 Accessing usb devices with USBDEVFS Danny Budik
2006-04-28 21:14 ` Greg KH
2006-04-29 13:06 ` Kay Sievers
2006-05-01 15:39 ` Danny Budik
2006-05-01 16:57 ` Greg KH
2006-05-01 19:00 ` Danny Budik
2006-05-01 19:06 ` Greg KH
2006-05-01 19:09 ` Kay Sievers
2006-05-05 20:45 ` Danny Budik [this message]
2006-05-05 21:02 ` Greg KH
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