Date: Wed, 07 Apr 2010 07:06:42 -0700 From: Chris Telting <christopher-ml@telting.org> To: usb@freebsd.org Subject: Syncronous Interrupt Transfer Message-ID: <4BBC9172.9010607@telting.org>
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Just learning the USB API. Can someone point me to a driver to use as an example of a synchronous call? Do I need to use a mutex? I have a device that that does the equivalent of control transfers over an interrupt pipe. So I need to send data, get status, send more data, get status again, and then finally start retrieving data; all using interrupt transfers. Been going over the drivers in the kernel and they are all looking to be doing async or synchronous back through user mode.home | help
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