From: Markus Armbruster <armbru@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
qemu-devel@nongnu.org, "Andreas Färber" <afaerber@suse.de>
Subject: Re: [Qemu-devel] [PATCH 3/4] usb-bot: hotplug support
Date: Tue, 02 Feb 2016 14:36:45 +0100 [thread overview]
Message-ID: <87vb67kzde.fsf@blackfin.pond.sub.org> (raw)
In-Reply-To: <1453804885-15544-4-git-send-email-kraxel@redhat.com> (Gerd Hoffmann's message of "Tue, 26 Jan 2016 11:41:24 +0100")
Gerd Hoffmann <kraxel@redhat.com> writes:
> This patch marks usb-bot as hot-pluggable device, makes attached
> property settable and turns off auto-attach in case the device
> was hotplugged.
>
> Hot-plugging a usb-bot device with one or more scsi devices can be
> done this way now:
>
> (1) device-add usb-bot,id=foo
> (2) device-add scsi-{hd,cd},bus=foo.0,lun=0
> (2b) optionally add more devices (luns 0 ... 15).
> (3) qom-set foo.attached = true
This isn't exactly pretty, but it beats no hot plug.
A general solution for hot plugging composite devices could perhaps be
prettier, but I'm not aware of any recent work in the area. Andreas,
Paolo?
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Assuming we want this because we can't have a general solution now:
Reviewed-by: Markus Armbruster <armbru@redhat.com>
next prev parent reply other threads:[~2016-02-02 13:36 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 10:41 [Qemu-devel] [PATCH 0/4] usb: hotplug support for usb-bot and usb-uas Gerd Hoffmann
2016-01-26 10:41 ` [Qemu-devel] [PATCH 1/4] usb: make USBDevice->attached bool Gerd Hoffmann
2016-02-02 13:06 ` Markus Armbruster
2016-01-26 10:41 ` [Qemu-devel] [PATCH 2/4] usb: add attached property Gerd Hoffmann
2016-02-02 13:33 ` Markus Armbruster
2016-02-02 14:25 ` Gerd Hoffmann
2016-02-02 15:37 ` Markus Armbruster
2016-01-26 10:41 ` [Qemu-devel] [PATCH 3/4] usb-bot: hotplug support Gerd Hoffmann
2016-02-02 13:36 ` Markus Armbruster [this message]
2016-02-02 18:16 ` Andreas Färber
2016-02-03 7:58 ` Gerd Hoffmann
2016-01-26 10:41 ` [Qemu-devel] [PATCH 4/4] usb-uas: " Gerd Hoffmann
2016-02-02 13:36 ` Markus Armbruster
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