http://blog.gmane.org/gmane.linux.console hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.linux.console/250 <pre>-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi folks, To make a headless system "less headless", would it be possible to integrate a vnc framebuffer device into the kernel? The idea is to have a vnc server instead of a local screen and keyboard to show the boot output and to provide a console login on /dev/tty{1..6}. It would be pretty similar to qemu. No need for fancy graphics, of course. The IP address might either be obtained using DHCP, or it might use an IP address/netmask given on the kernel command line. I understand that authentication might be an issue here. Hopefully this isn't one of the oh-no-not-again questions. I haven't seen it mentioned on the kernel or linux-console mailing lists before. Regards Harri -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEARECAAYFAk/caG4ACgkQUTlbRTxpHjf8EwCZAZ0H17WYyEwJB3QgCNjazY2O 3NMAn2e0dJa3sbiZr33nY11m1g0zm0j3 =MANA -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-console" in the bod</pre> Harald Dunkel 2012-06-16T11:05:24 http://comments.gmane.org/gmane.linux.console/248 <pre>Hi there, Sorry to bother. Not sure whether it is correct to post this question to the mail list, but can't find a suitable linux console user mail list for discussing this. If you have good mail list to suggest, please help me to forward. Thanks! The question is: I tried to make my emacs have the same key response on both X and console (ssh pts). However, I can't find scan code for "Ctrl-PageDown" in console mode. I attached the code for testing the scan code, and below is different behavior in X and console: ============= X =========== Press a Key 338 // Just type &lt;PageDown&gt; Press a Key 27 Press a Key 91 Press a Key 54 Press a Key 59 Press a Key 53 Press a Key 126 // 6-chars for &lt;Ctrl-PageDown&gt; ============ Console ========= Press a Key 338 // Same for &lt;PageDown&gt; Press a Key // No response for &lt;Ctrl-PageDown&gt; Any idea on this? Greatly appreciate your replies, your suggested readings, and so on! Best Regards, Lamu Guo =============Below is text of the code, for easily reading to skip attac</pre> 郭晓峰 2012-01-15T00:52:58 http://comments.gmane.org/gmane.linux.console/247 <pre>Hi. I develop the program that visualizes disk checking process. Similarly to known DOS program, MHDD. To get the idea, you can find screencasts of its usage on Youtube. Or look at my program's screenshot: http://cloud.github.com/downloads/krieger-od/whdd/whdd_screenshot5.png So i need to update big zone at left, and stats in top right corner. The point is that it can be ~1000 blocks processed per second, although it is ok to render them each Nth time, like at each 10-50 blocks processed. Currently i use ncurses, and its performance is unacceptable, the screen blinks awfully, because it prints whole screen of chars on refresh. I ask for directing me to any sufficiently performant libs/API, to replace ncurses. It would be ok, and even nice, if it is plain text mode (80x25, 16 colors), without any overhead of representing my chars as graphical points. It would be _very_ nice, if that API provide 'windows' model in terms of ncurses, to work with rectangular pieces. No OS portability is required. Linux only is </pre> Andrey Utkin 2011-12-24T15:57:56 http://comments.gmane.org/gmane.linux.console/242 <pre>The ePAPR hypervisor byte channel console driver only supports one byte channel as a console, and the byte channel handle is stored in a global variable. It doesn't make any sense to pass that handle as a parameter to the console functions, since these functions already have access to the global variable. This change also fixes this compilation warning on a 64-bit kernel: CC drivers/tty/ehv_bytechan.o drivers/tty/ehv_bytechan.c: In function 'ehv_bc_console_write': drivers/tty/ehv_bytechan.c:289:24: warning: cast from pointer to integer of different size drivers/tty/ehv_bytechan.c: In function 'ehv_bc_console_init': drivers/tty/ehv_bytechan.c:355:24: warning: cast to pointer from integer of different size This warning is because the driver is converting the integer byte channel handle to/from the void* 'data' field of struct console. Rather than fix the warning, we just eliminate the code altogether. Signed-off-by: Timur Tabi &lt;timur&lt; at &gt;freescale.com&gt; --- drivers/tty/ehv_bytechan.c | 7 ++----- 1</pre> Timur Tabi 2011-09-20T18:26:57 http://comments.gmane.org/gmane.linux.console/240 <pre>The ePAPR embedded hypervisor specification provides an API for "byte channels", which are serial-like virtual devices for sending and receiving streams of bytes. This driver provides Linux kernel support for byte channels via three distinct interfaces: 1) An early-console (udbg) driver. This provides early console output through a byte channel. The byte channel handle must be specified in a Kconfig option. 2) A normal console driver. Output is sent to the byte channel designated for stdout in the device tree. The console driver is for handling kernel printk calls. 3) A tty driver, which is used to handle user-space input and output. The byte channel used for the console is designated as the default tty. Signed-off-by: Timur Tabi &lt;timur&lt; at &gt;freescale.com&gt; --- arch/powerpc/include/asm/udbg.h | 1 + arch/powerpc/kernel/udbg.c | 2 + drivers/tty/Kconfig | 34 ++ drivers/tty/Makefile | 1 + drivers/tty/ehv_bytechan.c | 888 ++++++++++++++++++++++++++++++++++++++</pre> Timur Tabi 2011-07-09T00:06:12 http://comments.gmane.org/gmane.linux.console/221 <pre>Add the drivers/virt directory, which houses drivers that support virtualization environments, and add the Freescale hypervisor management driver. The Freescale hypervisor management driver provides several services to drivers and applications related to the Freescale hypervisor: 1. An ioctl interface for querying and managing partitions 2. A file interface to reading incoming doorbells 3. An interrupt handler for shutting down the partition upon receiving the shutdown doorbell from a manager partition 4. A kernel interface for receiving callbacks when a managed partition shuts down. Signed-off-by: Timur Tabi &lt;timur&lt; at &gt;freescale.com&gt; --- Documentation/ioctl/ioctl-number.txt | 1 + drivers/Kconfig | 2 + drivers/Makefile | 3 + drivers/virt/Kconfig | 32 ++ drivers/virt/Makefile | 5 + drivers/virt/fsl_hypervisor.c | 937 ++++++++++++++++++++++++++++++++++ include/linux/Kbuild | 1 + incl</pre> Timur Tabi 2011-06-09T20:52:06 http://comments.gmane.org/gmane.linux.console/209 <pre>Add the drivers/virt directory, which houses drivers that support virtualization environments, and add the Freescale hypervisor management driver. The Freescale hypervisor management driver provides several services to drivers and applications related to the Freescale hypervisor: 1. An ioctl interface for querying and managing partitions 2. A file interface to reading incoming doorbells 3. An interrupt handler for shutting down the partition upon receiving the shutdown doorbell from a manager partition 4. A kernel interface for receiving callbacks when a managed partition shuts down. Signed-off-by: Timur Tabi &lt;timur&lt; at &gt;freescale.com&gt; --- drivers/Kconfig | 2 + drivers/Makefile | 3 + drivers/virt/Kconfig | 32 ++ drivers/virt/Makefile | 5 + drivers/virt/fsl_hypervisor.c | 983 ++++++++++++++++++++++++++++++++++++++++ include/linux/Kbuild | 1 + include/linux/fsl_hypervisor.h | 231 ++++++++++ 7 files changed, 1257 insertion</pre> Timur Tabi 2011-06-09T19:13:14 http://comments.gmane.org/gmane.linux.console/199 <pre>Add the drivers/virt directory, which houses drivers that support virtualization environments, and add the Freescale hypervisor management driver. The Freescale hypervisor management driver provides several services to drivers and applications related to the Freescale hypervisor: 1. An ioctl interface for querying and managing partitions 2. A file interface to reading incoming doorbells 3. An interrupt handler for shutting down the partition upon receiving the shutdown doorbell from a manager partition 4. An interface for receiving callbacks when a managed partition shuts down. Signed-off-by: Timur Tabi &lt;timur&lt; at &gt;freescale.com&gt; --- drivers/Kconfig | 2 + drivers/Makefile | 3 + drivers/virt/Kconfig | 22 + drivers/virt/Makefile | 5 + drivers/virt/fsl_hypervisor.c | 961 ++++++++++++++++++++++++++++++++++++++++ include/linux/Kbuild | 1 + include/linux/fsl_hypervisor.h | 214 +++++++++ 7 files changed, 1208 insertions(+), 0 del</pre> Timur Tabi 2011-06-08T22:45:54 http://comments.gmane.org/gmane.linux.console/181 <pre>The Freescale hypervisor management driver provides several services to drivers and applications related to the Freescale hypervisor: 1. An ioctl interface for querying and managing partitions 2. A file interface to reading incoming doorbells 3. An interrupt handler for shutting down the partition upon receiving the shutdown doorbell from a manager partition 4. An interface for receiving callbacks when a managed partition shuts down. Signed-off-by: Timur Tabi &lt;timur&lt; at &gt;freescale.com&gt; --- drivers/misc/Kconfig | 7 + drivers/misc/Makefile | 1 + drivers/misc/fsl_hypervisor.c | 954 ++++++++++++++++++++++++++++++++++++++++ include/linux/Kbuild | 1 + include/linux/fsl_hypervisor.h | 214 +++++++++ 5 files changed, 1177 insertions(+), 0 deletions(-) create mode 100644 drivers/misc/fsl_hypervisor.c create mode 100644 include/linux/fsl_hypervisor.h diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index d80dcde..3e016b3 100644 --- a/drivers/misc/Kconfig +++ </pre> Timur Tabi 2011-06-03T20:47:37 http://comments.gmane.org/gmane.linux.console/166 <pre>The Freescale hypervisor management driver provides several services to drivers and applications related to the Freescale hypervisor: 1. An ioctl interface for querying and managing partitions 2. A file interface to reading incoming doorbells 3. An interrupt handler for shutting down the partition upon receiving the shutdown doorbell from a manager partition 4. An interface for receiving callbacks when a managed partition shuts down. Signed-off-by: Timur Tabi &lt;timur&lt; at &gt;freescale.com&gt; --- drivers/misc/Kconfig | 7 + drivers/misc/Makefile | 1 + drivers/misc/fsl_hypervisor.c | 941 ++++++++++++++++++++++++++++++++++++++++ include/linux/Kbuild | 1 + include/linux/fsl_hypervisor.h | 203 +++++++++ 5 files changed, 1153 insertions(+), 0 deletions(-) create mode 100644 drivers/misc/fsl_hypervisor.c create mode 100644 include/linux/fsl_hypervisor.h diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index d80dcde..3e016b3 100644 --- a/drivers/misc/Kconfig +++ </pre> Timur Tabi 2011-06-01T18:35:37 http://comments.gmane.org/gmane.linux.console/161 <pre>The ePAPR embedded hypervisor specification provides an API for "byte channels", which are serial-like virtual devices for sending and receiving streams of bytes. This driver provides Linux kernel support for byte channels via three distinct interfaces: 1) An early-console (udbg) driver. This provides early console output through a byte channel. The byte channel handle must be specified in a Kconfig option. 2) A normal console driver. Output is sent to the byte channel designated for stdout in the device tree. The console driver is for handling kernel printk calls. 3) A tty driver, which is used to handle user-space input and output. The byte channel used for the console is designated as the default tty. Signed-off-by: Timur Tabi &lt;timur&lt; at &gt;freescale.com&gt; --- arch/powerpc/include/asm/udbg.h | 1 + arch/powerpc/kernel/udbg.c | 2 + drivers/tty/Kconfig | 33 ++ drivers/tty/Makefile | 1 + drivers/tty/ehv_bytechan.c | 888 ++++++++++++++++++++++++++++++++++++++</pre> Timur Tabi 2011-05-19T18:34:52 http://comments.gmane.org/gmane.linux.console/136 <pre>Hi, I ran into a problem recently on a Linux server with a remote serial console. /sbin/init (actually Upstart) was in a state where nothing (useful) was running. I had to power cycle the machine to get back to the boot prompt. This has the side-effect of triggering raid rebuilds. It would be nice to have what Ctrl-Alt-Del does at the VGA console with PS/2 or USB keyboard. This sends a SIGINT to PID 1, and most distros have this set to do "shutdown -r now" which attempts a clean reboot. Once upon a time there was KeyboardRequest, which would send a SIGWINCH to PID 1 (when pressing Alt-UP_arrow?). I don't see any sign of this feature in Linux 2.6.32 though. Looking at the Sysrq handlers in the kernel I don't see any keystrokes that send SIGINT to PID 1 either. So, I'm wondering if it makes sense to add a Sysrq key to send a signal to PID1 ? </pre> Jeremy Jackson 2011-03-11T13:43:52 http://comments.gmane.org/gmane.linux.console/90 <pre>Hi, there I'm implementing the UNICODE font of the framebuffer console, (see http://lkml.org/lkml/2010/11/26/50 in case you do not got my email). But current vt code is too bugy, too many direct assumes about vt buffer, This makes me so hard to hack. There is TODO telling me to add UNICODE support, but no room for such code, that's why my patch is so tricky. And the code itself, if you'll excuse me, it isn't as beautiful as rest of the kernel. So, it really really need a clean rewrite.I'm ganna take is hard job. And, please tell me if is worth to do so. -- To unsubscribe from this list: send the line "unsubscribe linux-console" in the body of a message to majordomo&lt; at &gt;vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html </pre> Microcai 2010-11-28T10:57:55 http://comments.gmane.org/gmane.linux.console/77 <pre>Hi, I know there are most people speaking only English, and never meet non-ASCII characters on console. But, hey , what about others ? Then, some of you may come up with a idea than ,there is already fbterm than supports non-ASCII characters in user-space. But, what if you forgot to run fbterm ? And what about some program that must be run on native tty console ? Or I just want init script display fine Native Language? So, here is the solution: Making framebuffer console handle UNICODE font in kernel. The first thing I need to handle is that, currently there is no room for adding UNICODE font, only 8bit for characters, how can you do? Also , some characters are double-width. So the solution is make an backing store. 0xFE and 0xFF stands for character value store else where, and 0xFF means , left-half of the else where character, and 0xFE means right-half of the else where character. This is a basic solution, the best is that making vc-&gt;vc_screenbuf store full UNICODE/attribute value, But changin</pre> Microcai 2010-11-26T10:02:40 http://comments.gmane.org/gmane.linux.console/76 <pre>Is anyone reading this mailing list? I presume that since it's called "linux-console" and hosted on kernel.org, that this is the right place to ask for help with writing console drivers. However, it doesn't appear that anyone is actually reading this list, so I want to make sure I'm not wasting my time here. I'm trying to write a console/TTY driver that is not a UART driver, and I can't seem to find a good example of such a driver out there. Specfically, my driver has an interrupt handler that calls tty_insert_flip_string() when it receives new input. What I don't understand is how am I supposed to know what "struct tty_struct" to use for this function. It appears that it's possible to open the TTY device multiple times, each time with a different struct tty_struct. But I can only have one interrupt handler, so I don't know how I'm supposed to determine which of the many struct tty_struct pointers to use. </pre> Timur Tabi 2010-10-27T20:38:01 http://comments.gmane.org/gmane.linux.console/75 <pre>Hi, I'm trying to write a console/tty driver, and I need help. When the kernel boots, I can see that console output is working through my driver. However, after the initial kernel boot, my console stops working. Here are the relevant parts of the boot log: Using P4080DS HV machine description Memory CAM mapping: 256/256 Mb, residual: 0Mb Linux version 2.6.34-6506-00741-gbd4ea2b-dirty (b04825&lt; at &gt;efes) (gcc version 4.4.1 (Sourcery G++ Lite 4.4-194) ) #33 SMP Mon Oct 25 16:20:20 CDT 2010 Found initrd at 0xc1300000:0xc3b00000 ... Kernel command line: console=ttyEHV ... console [ttyEHV0] enabled ... NET: Registered protocol family 10 IPv6 over IPv4 tunneling driver NET: Registered protocol family 17 NET: Registered protocol family 15 drivers/rtc/hctosys.c: unable to open rtc device (rtc0) Warning: unable to open an initial console. -19 RAMDISK: gzip image found at block 0 VFS: Mounted root (ext2 filesystem) readonly on device 1:0. Freeing unused kernel memory: 236k init And this is where it stops. As you can </pre> Timur Tabi 2010-10-25T21:30:16 http://comments.gmane.org/gmane.linux.console/74 <pre>I'm trying to write a console and TTY driver that's not based on a serial port, and I'm confused by the "device' field of 'struct console'. I found this text in http://www.linux.it/~rubini/docs/sercons/sercons.html: "The purpose of the UDP console device is sending kernel messages through the network. Unlike serial or vt consoles, which are associated to real tty devices, this console has no tty associated, and that's why the device function is not defined. In a real console device, the device function is used to return the device number associated to this console as a kdev_t value. Only one serial port can be elected as a console, for example, and the device function defined by the serial driver is used to tell the caller which one is. The function is used in drivers/char/tty_io.c to redirect any access to /dev/console. Thus, a process that opens /dev/console will actually open a different device, provided at least one of the active console drivers has a device function and the device returned is known t</pre> Timur Tabi 2010-10-25T18:23:30 http://comments.gmane.org/gmane.linux.console/73 <pre></pre> Jannise Nagura 2010-07-19T22:21:13 http://comments.gmane.org/gmane.linux.console/72 <pre></pre> Veselka Mcrorie 2010-06-14T17:07:34 http://comments.gmane.org/gmane.linux.console/71 <pre></pre> Battaglia Gladhill 2010-06-12T18:42:22 http://comments.gmane.org/gmane.linux.console/70 <pre></pre> Daughtery Bombaci 2010-05-18T18:29:24 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.linux.console