From: Linus Torvalds Date: Tue, 13 Dec 2016 19:18:24 +0000 (-0800) Subject: Merge tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5266e70335dac35c35b5ca9cea4251c1389d4a68;p=linux-beck.git Merge tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial updates from Greg KH: "Here's the tty/serial patchset for 4.10-rc1. It's been a quiet kernel cycle for this subsystem, just a small number of changes. A few new serial drivers, and some cleanups to the old vgacon logic, and other minor serial driver changes as well. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (54 commits) serial: 8250_mid fix calltrace when hotplug 8250 serial controller console: Move userspace I/O out of console_lock to fix lockdep warning tty: nozomi: avoid sprintf buffer overflow serial: 8250_pci: Detach low-level driver during PCI error recovery serial: core: don't check port twice in a row mxs-auart: count FIFO overrun errors serial: 8250_dw: Add support for IrDA SIR mode serial: 8250: Expose set_ldisc function serial: 8250: Add IrDA to UART capabilities serial: 8250_dma: power off device after TX is done serial: 8250_port: export serial8250_rpm_{get|put}_tx() serial: sunsu: Free memory when probe fails serial: sunhv: Free memory when remove() is called vt: fix Scroll Lock LED trigger name tty: typo in comments in drivers/tty/vt/keyboard.c tty: amba-pl011: Add earlycon support for SBSA UART tty: nozomi: use permission-specific DEVICE_ATTR variants tty: serial: Make the STM32 serial port depend on it's arch serial: ifx6x60: Free memory when probe fails serial: ioc4_serial: Free memory when kzalloc fails during probe ... --- 5266e70335dac35c35b5ca9cea4251c1389d4a68 diff --cc Documentation/admin-guide/vga-softcursor.rst index a663a745cff4,000000000000..f52175457e60 mode 100644,000000..100644 --- a/Documentation/admin-guide/vga-softcursor.rst +++ b/Documentation/admin-guide/vga-softcursor.rst @@@ -1,66 -1,0 +1,62 @@@ +Software cursor for VGA +======================= + +by Pavel Machek +and Martin Mares + - Linux now has some ability to manipulate cursor appearance. Normally, you - can set the size of hardware cursor (and also work around some ugly bugs in - those miserable Trident cards [#f1]_. You can now play a few new tricks: - you can make your cursor look - - like a non-blinking red block, make it inverse background of the character it's - over or to highlight that character and still choose whether the original - hardware cursor should remain visible or not. There may be other things I have - never thought of. ++Linux now has some ability to manipulate cursor appearance. Normally, ++you can set the size of hardware cursor. You can now play a few new ++tricks: you can make your cursor look like a non-blinking red block, ++make it inverse background of the character it's over or to highlight ++that character and still choose whether the original hardware cursor ++should remain visible or not. There may be other things I have never ++thought of. + +The cursor appearance is controlled by a ``[?1;2;3c`` escape sequence +where 1, 2 and 3 are parameters described below. If you omit any of them, +they will default to zeroes. + +first Parameter + specifies cursor size:: + + 0=default + 1=invisible + 2=underline, + ... + 8=full block + + 16 if you want the software cursor to be applied + + 32 if you want to always change the background color + + 64 if you dislike having the background the same as the + foreground. + + Highlights are ignored for the last two flags. + +second parameter + selects character attribute bits you want to change + (by simply XORing them with the value of this parameter). On standard + VGA, the high four bits specify background and the low four the + foreground. In both groups, low three bits set color (as in normal + color codes used by the console) and the most significant one turns + on highlight (or sometimes blinking -- it depends on the configuration + of your VGA). + +third parameter + consists of character attribute bits you want to set. + + Bit setting takes place before bit toggling, so you can simply clear a + bit by including it in both the set mask and the toggle mask. + - .. [#f1] see ``#define TRIDENT_GLITCH`` in ``drivers/video/vgacon.c``. - +Examples +-------- + +To get normal blinking underline, use:: + + echo -e '\033[?2c' + +To get blinking block, use:: + + echo -e '\033[?6c' + +To get red non-blinking block, use:: + + echo -e '\033[?17;0;64c'