Date: Wed, 22 Aug 2018 10:47:30 -0600 From: "John Hein" <jh-fbml@snkmail.com> To: usb@freebsd.org Subject: Re: access usb device from bhyve vm Message-ID: <11601-1534956478-23307@sneakemail.com> In-Reply-To: <CALM2mEnyHUnw3p9QbwyZ1NzgBNXgbWjF9YmEV2f4BpWnp4ednQ@mail.gmail.com> References: <1634-1534897546-921625@sneakemail.com> <CALM2mEnyHUnw3p9QbwyZ1NzgBNXgbWjF9YmEV2f4BpWnp4ednQ@mail.gmail.com>
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blubee blubeeme wrote at 08:42 +0800 on Aug 22, 2018: > On Wed, Aug 22, 2018 at 8:26 AM John Hein <jh-fbml@snkmail.com> wrote: > > Does anyone have thought about what it would take to support access to > individual usb devices "natively" from a bhyve vm? > _______________________________________________ > freebsd-usb@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-usb > To unsubscribe, send any mail to "freebsd-usb-unsubscribe@freebsd.org" > > I had this idea maybe a year or two years ago, there was also another guy [he worked > on the fbuffer for bhyve] who wanted to get it done but they were waiting on the > main guy behind the USB stack on freebsd: hselasky > > He was too busy to actually do any work so the project stalled. > > My use case for having direct access to usb devices in a bhyve vm could allow rapid > development of USB drivers for FreeBSD by sniffing the packets being sent over USB > to the bhyve guest and reverse engineer drivers so that we can write native drivers > for common devices that aren't supported on FreeBSD yet. > > I had to put that on the back burner for a bit since there's a lot more pressing > FreeBSD issues that I am working on. > > What's your use case? My use case is more specific (and thus perhaps less of a lofty goal?). I want to access a usb-based fpga jtag programmer from a linux vm (specifically using a xilinx tool like "impact").
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