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Date:      Sat, 6 Jan 2018 21:11:05 -0700
From:      Warner Losh <imp@bsdimp.com>
To:        blubee blubeeme <gurenchan@gmail.com>
Cc:        "O'Connor, Daniel" <darius@dons.net.au>, gljennjohn@gmail.com,  FreeBSD current <freebsd-current@freebsd.org>
Subject:   Re: USB stack
Message-ID:  <CANCZdfqna3dy-29g_fB3-aw71Hps2ph_%2BNMBUW9z7nhMBVztjg@mail.gmail.com>
In-Reply-To: <CALM2mE=uFK0BVqxFcrU_K%2BN%2BwYnu9VTewACeNqPTGYFEv93g4g@mail.gmail.com>
References:  <CALM2mEmZFP9dGOivJknrCaaa-K1cSxNTTEV%2B8XCMpoZp-xcbqQ@mail.gmail.com> <1FD1FE97-D25C-4BAC-A3E0-F22509FB0C2B@dons.net.au> <CALM2mE=7cKcPzJ=-bVvmHez2inrAqJsuMaW%2BUZZtXesB3pzDtQ@mail.gmail.com> <6A4FF1B9-D98B-4E73-9E3E-E951749E0C21@dons.net.au> <20180104092349.2821f9f9@ernst.home> <18F01F2F-8907-4CF8-A80A-B6B5C16593B7@dons.net.au> <CALM2mE=uFK0BVqxFcrU_K%2BN%2BwYnu9VTewACeNqPTGYFEv93g4g@mail.gmail.com>

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On Sat, Jan 6, 2018 at 8:56 PM, blubee blubeeme <gurenchan@gmail.com> wrote:

> I ask does FreeBSD usb stack actually implements USB spec 2.0 or greater
> and the topic gets derailed...?
>

Yes, it does.


> Are you guys saying that 7-8MB/s is USB speeds?
>

I've gotten up to 24MB/s for maybe a decade. That's not possible with USB
1.x. More recently, I've maxed out the writes on a USB stick at about
75MB/s (the fastest it will do), which isn't possible with USB 2.0... I've
not tried USB3 with an SSD that can do more....

Warner


> On Thu, Jan 4, 2018 at 6:44 PM, O'Connor, Daniel <darius@dons.net.au>
> wrote:
>
> >
> >
> > > On 4 Jan 2018, at 09:23, Gary Jennejohn <gljennjohn@gmail.com> wrote:
> > >> What is an "LG v30"?
> > >>
> > > It's a smartphone from LG and only supports USB2 speed.  The reported
> > > transfer rate is no big surprise.
> >
> > OK thanks.
> >
> > --
> > Daniel O'Connor
> > "The nice thing about standards is that there
> > are so many of them to choose from."
> >  -- Andrew Tanenbaum
> > GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
> >
> >
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