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Message-ID: <Pine.LNX.4.44L0.1002051042410.24090-100000@netrider.rowland.org> Date: Fri, 5 Feb 2010 10:45:29 -0500 (EST) From: Alan Stern <stern@...land.harvard.edu> To: Chris Verges <chrisv@...erswitching.com> cc: Greg Kroah-Hartman <gregkh@...e.de>, <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>, Rob Owings <rowings@...rmistor.com> Subject: Re: [PATCH] linux-2.6.32-directemp On Thu, 4 Feb 2010, Chris Verges wrote: > Hi Linux gurus, > > Attached is a patch for the QTI DirecTEMP USB thermometer & > thermometer/hygrometer sensors. This patch is based on linux-2.6.32. > Functionality has been verified against both hardware variants listed in > the driver (0x0002 and 0x0006), as both monolithic and modular. > > When the QTI DirecTEMP sensor is connected to a system, the directemp > driver adds appropriate sysfs entries for the sensor type(s) supported. > Examples: > > # PID 0x0002 (temp only) > /sys/bus/usb/devices/.../temp > > # PID 0x0006 (temp + relative humidity) > /sys/bus/usb/devices/.../temp > /sys/bus/usb/devices/.../rh > > Using a standard "cat" will display the value. This isn't a big deal... but it's more common for drivers to provide regular device files for I/O than to rely on sysfs attributes. You end up with more control and flexibility. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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