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> wrot= e: >=20 > Does anyone have thought about what it would take to support acc= ess to > individual usb devices "natively" from a bhyve vm=3F > =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F > freebsd-usb@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-usb > To unsubscribe, send any mail to "freebsd-usb-unsubscribe@freebs= d.org" >=20 > I had this idea maybe a year or two years ago, there was also anothe= r guy [he worked > on the fbuffer for bhyve] who wanted to get it done but they were wa= iting on the > main guy behind the USB stack on freebsd:=A0hselasky >=20 > He was too busy to actually do any work so the project stalled. >=20 > My use case for having direct access to usb devices in a bhyve vm co= uld 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. >=20 > I had to put that on the back burner for a bit since there's a lot m= ore pressing > FreeBSD issues that I am working on. >=20 > What's your use case=3F My use case is more specific (and thus perhaps less of a lofty goal=3F)= =2E 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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