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5266e70335
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.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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
...
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Software cursor for VGA
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=======================
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by Pavel Machek <pavel@atrey.karlin.mff.cuni.cz>
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and Martin Mares <mj@atrey.karlin.mff.cuni.cz>
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Linux now has some ability to manipulate cursor appearance. Normally,
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you can set the size of hardware cursor. You can now play a few new
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tricks: you can make your cursor look like a non-blinking red block,
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make it inverse background of the character it's over or to highlight
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that character and still choose whether the original hardware cursor
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should remain visible or not. There may be other things I have never
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thought of.
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The cursor appearance is controlled by a ``<ESC>[?1;2;3c`` escape sequence
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where 1, 2 and 3 are parameters described below. If you omit any of them,
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they will default to zeroes.
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first Parameter
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specifies cursor size::
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0=default
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1=invisible
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2=underline,
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...
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8=full block
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+ 16 if you want the software cursor to be applied
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+ 32 if you want to always change the background color
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+ 64 if you dislike having the background the same as the
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foreground.
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Highlights are ignored for the last two flags.
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second parameter
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selects character attribute bits you want to change
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(by simply XORing them with the value of this parameter). On standard
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VGA, the high four bits specify background and the low four the
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foreground. In both groups, low three bits set color (as in normal
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color codes used by the console) and the most significant one turns
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on highlight (or sometimes blinking -- it depends on the configuration
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of your VGA).
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third parameter
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consists of character attribute bits you want to set.
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Bit setting takes place before bit toggling, so you can simply clear a
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bit by including it in both the set mask and the toggle mask.
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Examples
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--------
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To get normal blinking underline, use::
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echo -e '\033[?2c'
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To get blinking block, use::
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echo -e '\033[?6c'
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To get red non-blinking block, use::
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echo -e '\033[?17;0;64c'
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