From mboxrd@z Thu Jan 1 00:00:00 1970 From: Monica Puig-Pey Subject: I/O operations priority in RTOS Date: Sat, 4 Jun 2011 14:03:46 +0200 Message-ID: <4DEA1F22.6000603@unican.es> References: <4DEA1BA9.7020303@unican.es> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE To: , Return-path: Received: from ccserver1.unican.es ([130.206.5.100]:55683 "EHLO ccserver1.unican.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752303Ab1FDMDS (ORCPT ); Sat, 4 Jun 2011 08:03:18 -0400 In-Reply-To: <4DEA1BA9.7020303@unican.es> Sender: linux-rt-users-owner@vger.kernel.org List-ID: Hello, I'm studying how to develop drivers in a real time OS and how do they=20 work. I'm using Ubuntu 10.04 with the 2.6.31-11-rt patch installed. I would like to know the priority when executing open(), read(), write(= )=20 and close() operations. In my example the thread which is using the driver runs with 10 RTPRIO,= =20 but I don't know what happens in kernel context with the priority when=20 running the I/O operations. Thank you for your help, I don't know where to learn about this. M=F3nica -- To unsubscribe from this list: send the line "unsubscribe linux-rt-user= s" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html