On Mon, Feb 15, 2010 at 10:48 PM, Naresh Kansara <[email protected]> wrote: > Hi Viral, > Thank you for your help. I do see an entry in /proc/devices file as > 29 fb > > Also my kernel .config file has following lines > > #Graphinc support > CONFIG_FB=y > CONFIG_FB_DAVINCI=y > > But when I try to create device using mknod /dev/fb/0 on Target -- I get > following error >> mknod /dev/fb/0 c 29 0 >> mknod: /dev/fb/0: No such file or directory > > Regards, > Naresh >
Hi Naresh, First, Keep mailing list in loop Second, Do not top post. Third, Make /dev/fb in root fs. - Viral > > > > -----Original Message----- > From: Viral Sachde [mailto:[email protected]] > Sent: Sunday, February 14, 2010 8:52 PM > To: Naresh Kansara > Cc: [email protected] > Subject: Re: any idea on /dev/fb/0-3 drivers > > On Sat, Feb 13, 2010 at 6:16 AM, Naresh Kansara > <[email protected]> wrote: >> Hello All, >> >> I have loaded Linux version >> >> 2.6.10_mv1401-davinci_evm on my Custom board. >> >> >> >> I have also taken the ramdisk image that is provided with DVEVM package, >> unzipped it and added some other dvevm programs. >> >> I have also loaded the zipped version of this modified ramdisk.gz file in to >> DDR memory at location 0x82000000. >> >> My custom board boots correctly and I am at Linux prompt, but when I do ls >> on /dev directory, I do not see /dev/fb/0 through /dev/fb/3. >> >> The problem I am facing is trying to run "encoderdecoder" software on custom >> board; it does not find the drivers /dev/fb/0 >> >> Can somebody give me an idea from where to get the device drivers /dev/fb/0 >> through /dev/fb/3. I could not find it in the ramdisk image or in any other >> directory on host. >> >> OR if it needs to be built on Target system, how to build it? >> >> >> >> Thank you & Regards, >> >> Naresh >> >> >> >> Naresh Kansara >> > > > > Hi Naresh, > > I suggest you to check > 1. "ls /sys/class/graphics/fb* " or > 2. "cat /proc/devices | grep fb " > Also do kernel log / dmesg shows any fb related stuff. > > If above logs, shows presence of FB, just create /dev/fb/* using mknod. > Otherwise, you may not have enabled fb driver in kernel config in > driver->graphics tab. > > Regards, Viral > _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
