[rtl] printk safe in fifo handler?
I know enough not to use printk from a rt process. What about a fifo i/o handler which is only triggered when the fifo is used from userland? It's somewhat academic, since I've already written the code and it seems to work, but I got to worrying about it. If it's not supposed to work, what kind of problems would it cause? rt_printf is not doable, as we're using RTL1.2 for the time being. " | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/
Re: [rtl] Power-Up and shutdown
Vernon Van Steenkist wrote: > 1) I need my device to be active 5 seconds after power-up. Can Linux >come up that quickly? Depends on the BIOS ... but usualy, EmbeddedPCs can´t be up and running that fast. Linux itself can be downsized to operate within a few seconds. The AXIS-Web/ModemCam based on uClinux (m68knommu), for example, is fully operational within 5 seconds after supplying power. > 2) I can not use the shutdown command to turn off the device. The >device will be turned off when power is removed. Will I incur any >file system corruption issues? mount the root-filesystem read-only and create a (umsdos)-partition for the data (reiserfs isn´t an option, as it usualy needs 30MB for the journal) Bernhard -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl " | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/
[rtl] Power-Up and shutdown
I am thinking about using Linux or Real Time Linux for a mobile unit. This unit would be activated when power is applied and deactivated when power is removed. I only plan to use flash memory (IDE flash) for storage. My questions are as follows: 1) I need my device to be active 5 seconds after power-up. Can Linux come up that quickly? 2) I can not use the shutdown command to turn off the device. The device will be turned off when power is removed. Will I incur any file system corruption issues? Any experience or advice would be greatly appreciated. -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl " | mail [EMAIL PROTECTED] --- For more information on Real-Time Linux see: http://www.rtlinux.org/rtlinux/