From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: A problem about the uart3 of OMAP osk5912 Date: Fri, 17 Feb 2006 13:08:25 -0800 Message-ID: <20060217210824.GB771@atomide.com> References: <20060217163457.9B78586CF0@mailreg.nctu.edu.tw> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Content-Disposition: inline In-Reply-To: <20060217163457.9B78586CF0@mailreg.nctu.edu.tw> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-omap-open-source-bounces@linux.omap.com Errors-To: linux-omap-open-source-bounces@linux.omap.com To: =?utf-8?B?5p6X5bCP546r?= Cc: linux-omap-open-source@linux.omap.com List-Id: linux-omap@vger.kernel.org * =E6=9E=97=E5=B0=8F=E7=8E=AB [060217 00:29]: > Hi there, >=20 > I have a problem about the uart3 of OMAP osk5912. The fact is that osk5= 912 > don't have a second substantial uart port. We tried to send a echo sign= al to > /dev/ttyS02(which is a character device node with the major number 4 an= d > minor number 65 we made), but there was no voltage change on the TX of > uart3. Can you tell me how to control the second uart of osk5912 under = OS? > Further more, can you tell me how to use the USB serial converter? We w= ere > using the GMUS-03 with chipset prolific, although the required convert = is > Elecom's US-SGT. If you solder a second UART to osk, you also have to init the additional internal port. See board-osk.c for that. USB serial port should show up as /dev/ttyUSB0. Tony