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Date:      Sat, 03 Sep 2005 08:18:02 -0600 (MDT)
From:      "M. Warner Losh" <imp@bsdimp.com>
To:        sebastien.bourdeauducq@gmail.com
Cc:        freebsd-usb@freebsd.org
Subject:   Re: Mutexes in USB callbacks ?
Message-ID:  <20050903.081802.78021370.imp@bsdimp.com>
In-Reply-To: <200509031614.51362.sebastien.bourdeauducq@gmail.com>

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In message: <200509031614.51362.sebastien.bourdeauducq@gmail.com>
            Sebastien <sebastien.bourdeauducq@gmail.com> writes:
: Hello,
: Is it finally possible or not to acquire a mutex in an USB callback function, 
: under FreeBSD 5-STABLE ?
: I have controversial information about this :(

Since the callback functions are called from an interrupt handler
which is an ithread protected by Giant, there should be no problems
doing this.

Warner


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