| /Linux-v5.4/Documentation/admin-guide/ |
| D | serial-console.rst | 3 Linux Serial Console
6 To use a serial port as console you need to compile the support into your
10 …ices --> Serial drivers --> 8250/16550 and compatible serial support --> Console on 8250/16550 and…
14 It is possible to specify multiple devices for console output. You can
16 use for console output.
20 console=device,options
22 device: tty0 for the foreground virtual console
23 ttyX for any other virtual console
35 You can specify multiple console= options on the kernel command line.
37 you open ``/dev/console``. So, for example::
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| D | braille-console.rst | 1 Linux Braille Console
6 console (see :ref:`Documentation/admin-guide/serial-console.rst <serial_console>`), and
8 (in :menuselection:`Device Drivers --> Accessibility support --> Console on braille device`).
10 Then you need to specify a ``console=brl``, option on the kernel command line, the
13 console=brl,serial_options...
16 :ref:`Documentation/admin-guide/serial-console.rst <serial_console>`.
18 …o for instance you can use ``console=brl,ttyS0`` if the braille device is connected to the first s…
21 By default, the braille device will just show the last kernel message (console
31 For simplicity, only one braille console can be enabled, other uses of
32 ``console=brl,...`` will be discarded. Also note that it does not interfere with
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| /Linux-v5.4/drivers/tty/serial/ |
| D | Kconfig | 15 the console before standard serial driver is probed. The console is
34 bool "Support for console on AMBA serial port"
39 console (the system console is the device which receives all kernel
42 Even if you say Y here, the currently visible framebuffer console
43 (/dev/tty0) will still be used as the system console by default, but
45 "console=ttyAM0". (Try "man bootparam" or see the documentation of
61 bool "Support for console on AMBA serial port"
67 console (the system console is the device which receives all kernel
70 Even if you say Y here, the currently visible framebuffer console
71 (/dev/tty0) will still be used as the system console by default, but
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| D | tegra-tcu.c | 6 #include <linux/console.h>
26 struct console console; member
147 static void tegra_tcu_console_write(struct console *cons, const char *s, in tegra_tcu_console_write()
150 struct tegra_tcu *tcu = container_of(cons, struct tegra_tcu, console); in tegra_tcu_console_write()
155 static int tegra_tcu_console_setup(struct console *cons, char *options) in tegra_tcu_console_setup()
206 /* setup the console */ in tegra_tcu_probe()
207 strcpy(tcu->console.name, "ttyTCU"); in tegra_tcu_probe()
208 tcu->console.device = uart_console_device; in tegra_tcu_probe()
209 tcu->console.flags = CON_PRINTBUFFER | CON_ANYTIME; in tegra_tcu_probe()
210 tcu->console.index = -1; in tegra_tcu_probe()
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| /Linux-v5.4/Documentation/ia64/ |
| D | serial.rst | 18 as a serial console. If the user specified "console=ttyS0"
31 and "console=" arguments. Without an HCDP, device names didn't
41 (EFI console (EFI console
46 MP Console 0xf8030000 ttyS2 ttyS0 ttyS2
51 Console Selection
54 EFI knows what your console devices are, but it doesn't tell the
56 table[1] does tell the kernel where potential serial console
61 So how do you tell Linux which console device to use?
65 card) as the console. Then you don't need to tell Linux
66 anything; the kernel will automatically use the EFI console.
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| /Linux-v5.4/drivers/tty/hvc/ |
| D | Kconfig | 7 Generic "hypervisor virtual console" infrastructure for various
9 It will automatically be selected if one of the back-end console drivers
16 bool "pSeries Hypervisor Virtual Console support"
22 console. This driver allows each pSeries partition to have a console
30 bool "OPAL Console support"
36 PowerNV machines running under OPAL need that driver to get a console
39 bool "IBM RTAS Console support"
43 IBM Console device driver which makes use of RTAS
46 bool "z/VM IUCV Hypervisor console support (VM only)"
52 This driver provides a Hypervisor console (HVC) back-end to access
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| /Linux-v5.4/Documentation/fb/ |
| D | fbcon.rst | 2 The Framebuffer Console
5 The framebuffer console (fbcon), as its name implies, is a text
6 console running on top of the framebuffer device. It has the functionality of
7 any standard text console driver, such as the VGA console, with the added
10 In the x86 architecture, the framebuffer console is optional, and
14 What are the features of fbcon? The framebuffer console supports
22 The framebuffer console can be enabled by using your favorite kernel
24 buffer Devices->Console display driver support->Framebuffer Console Support.
43 framebuffer console. Depending on the driver, you may get a blanked or
46 will still get a VGA console.
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| /Linux-v5.4/drivers/video/console/ |
| D | Kconfig | 6 menu "Console display driver support"
9 bool "VGA text console" if EXPERT || !X86
21 <ftp://ibiblio.org/pub/Linux/utils/console/>.
30 The scrollback buffer of the standard VGA console is located in
35 down the console.
51 bool "Persistent Scrollback History for each console by default"
57 flushed each time the console is switched. This feature can also be
73 tristate "MDA text console (dual-headed)"
87 tristate "SGI Newport Console support"
91 Say Y here if you want the console on the Newport aka XL graphics
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| /Linux-v5.4/drivers/net/ethernet/cavium/liquidio/ |
| D | octeon_console.c | 101 /* Structure that defines a single console.
104 * The actual usable size of each console is console_buf_size -1;
423 struct octeon_console *console; in octeon_console_handle_result() local
425 console = &oct->console[console_num]; in octeon_console_handle_result()
427 console->waiting = 0; in octeon_console_handle_result()
433 struct octeon_console *console, in output_console_line() argument
450 * having been read from the console). in output_console_line()
454 if (console->leftover[0] && in output_console_line()
455 (line != console->leftover)) { in output_console_line()
456 if (console->print) in output_console_line()
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| /Linux-v5.4/include/linux/ |
| D | console.h | 2 * linux/include/linux/console.h
43 * Invoked by csi_M and printing to the console.
44 * @con_set_palette: sets the palette of the console to @table (optional)
45 * @con_scrolldelta: the contents of the console should be scrolled by @lines.
84 * Flush the video console driver's scrollback buffer
88 * Prepare the console for the debugger. This includes, but is not
89 * limited to, unblanking the console, loading an appropriate
94 * Restore the console to its pre-debug state as closely as possible.
101 extern const struct consw dummy_con; /* dummy console buffer */
102 extern const struct consw vga_con; /* VGA text console */
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| D | vt_kern.h | 6 * this really is an extension of the vc_cons structure in console.c, but
35 /* console.c */
37 int vc_allocate(unsigned int console);
38 int vc_cons_allocated(unsigned int console);
40 struct vc_data *vc_deallocate(unsigned int console);
165 extern int vt_do_kdskbmode(int console, unsigned int arg);
166 extern int vt_do_kdskbmeta(int console, unsigned int arg);
170 int perm, int console);
173 extern int vt_do_kdskled(int console, int cmd, unsigned long arg, int perm);
174 extern int vt_do_kdgkbmode(int console);
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| /Linux-v5.4/Documentation/driver-api/ |
| D | console.rst | 4 Console Drivers
7 The Linux kernel has 2 general types of console drivers. The first type is
15 any time with each driver sharing the console with other drivers including
16 the system driver. However, modular drivers cannot take over the console
19 of driver occupying the consoles.) They can only take over the console that is
21 released by the console, the system driver will take over.
25 do_take_over_console() - load and bind driver to console layer
35 examined. This shows the console backends currently registered by the
89 Support for binding and unbinding console drivers
94 console to KD_GRAPHICS is X.
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| /Linux-v5.4/arch/parisc/kernel/ |
| D | pdc_cons.c | 3 * PDC Console support - ie use firmware to dump text via boot console
20 * The PDC console is a simple console, which can be used for debugging
22 * other console works.
34 #include <linux/console.h>
43 static struct console pdc_cons;
45 static void pdc_console_write(struct console *co, const char *s, unsigned count) in pdc_console_write()
57 int pdc_console_poll_key(struct console *co) in pdc_console_poll_key()
69 static int pdc_console_setup(struct console *co, char *options) in pdc_console_setup()
149 /* Check if the console driver is still registered. in pdc_console_tty_driver_init()
150 * It is unregistered if the pdc console was not selected as the in pdc_console_tty_driver_init()
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| /Linux-v5.4/lib/fonts/ |
| D | Kconfig | 16 your frame buffer console usually use.
30 provided by the text console 80x50 (and higher) modes).
43 provided by the VGA text console 80x25 mode.
48 bool "Mac console 6x11 font (not supported by all drivers)" if FONTS
52 Small console font with Macintosh-style high-half glyphs. Some Mac
56 bool "console 7x14 font (not supported by all drivers)" if FONTS
59 Console font with characters just a bit smaller than the default.
64 bool "Pearl (old m68k) console 8x8 font" if FONTS
68 Small console font with PC-style control-character and high-half
72 bool "Acorn console 8x8 font" if FONTS
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| /Linux-v5.4/drivers/hwtracing/stm/ |
| D | console.c | 3 * Simple kernel console driver for STM devices
6 * STM console will send kernel messages over STM devices to a trace host.
11 #include <linux/console.h>
20 struct console console; member
23 .name = "console",
31 stm_console_write(struct console *con, const char *buf, unsigned len) in stm_console_write()
33 struct stm_console *sc = container_of(con, struct stm_console, console); in stm_console_write()
42 strcpy(sc->console.name, "stm_console"); in stm_console_link()
43 sc->console.write = stm_console_write; in stm_console_link()
44 sc->console.flags = CON_ENABLED | CON_PRINTBUFFER; in stm_console_link()
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| /Linux-v5.4/arch/um/drivers/ |
| D | stderr_console.c | 4 #include <linux/console.h>
9 /* trivial console driver -- simply dump everything to stderr */
13 * boot process it becomes the default console.
19 static void stderr_console_write(struct console *console, const char *string, in stderr_console_write() argument
25 static struct console stderr_console = {
48 /* The previous behavior of not unregistering led to /dev/console being
51 * console to become the default console, and /dev/console can then be
54 * normal console is good enough to show you all available output.
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| D | stdio_console.c | 12 #include <linux/console.h>
32 printk(KERN_INFO "Virtual console %d assigned device '%s'\n", dev, in stdio_announce()
39 .xterm_title = "Virtual Console #%d",
50 .name = "UML console",
57 .read_irq_name = "console",
59 .write_irq_name = "console-write",
116 static void uml_console_write(struct console *console, const char *string, in uml_console_write() argument
119 struct line *line = &vts[console->index]; in uml_console_write()
127 static struct tty_driver *uml_console_device(struct console *c, int *index) in uml_console_device()
133 static int uml_console_setup(struct console *co, char *options) in uml_console_setup()
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| /Linux-v5.4/drivers/tty/ |
| D | Kconfig | 48 bool "Enable character translations in console" if EXPERT
54 bool "Support for console on virtual terminal" if EXPERT
58 The system console is the device which receives all kernel messages
61 a physical terminal) can be used as system console. This is the most
64 you should say Y to "Console on serial port", below).
67 terminal (/dev/tty0) will be used as system console. You can change
68 that with a kernel command line option such as "console=tty3" which
69 would use the third virtual terminal as system console. (Try "man
85 bool "Support for binding and unbinding console drivers"
89 terminal through console drivers. On these systems, at least one
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| /Linux-v5.4/kernel/printk/ |
| D | braille.h | 14 * Setup console according to braille options.
24 _braille_register_console(struct console *console, struct console_cmdline *c);
27 _braille_unregister_console(struct console *console);
43 _braille_register_console(struct console *console, struct console_cmdline *c) in _braille_register_console() argument
49 _braille_unregister_console(struct console *console) in _braille_unregister_console() argument
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| D | braille.c | 5 #include <linux/console.h>
38 _braille_register_console(struct console *console, struct console_cmdline *c) in _braille_register_console() argument
43 console->flags |= CON_BRL; in _braille_register_console()
44 rtn = braille_register_console(console, c->index, c->options, in _braille_register_console()
52 _braille_unregister_console(struct console *console) in _braille_unregister_console() argument
54 if (console->flags & CON_BRL) in _braille_unregister_console()
55 return braille_unregister_console(console); in _braille_unregister_console()
|
| /Linux-v5.4/arch/powerpc/ |
| D | Kconfig.debug | 52 warnings can be printed to the console when instructions are
142 bool "Support for early boot text console (BootX or OpenFirmware only)"
159 prompt "Early debugging console"
162 Use the selected console for early debugging. Careful, if you
174 bool "LPAR HV Console"
178 console on vterm 0.
181 bool "LPAR HVSI Console"
185 console on a specified vterm.
200 bool "RTAS Console"
204 Select this to enable early debugging via the RTAS console.
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| /Linux-v5.4/tools/testing/selftests/rcutorture/bin/ |
| D | kvm-find-errors.sh | 4 # Invoke a text editor on all console.log files for all runs with diagnostics,
5 # that is, on all such files having a console.log.diags counterpart.
6 # Note that both console.log.diags and console.log are passed to the
8 # idea of what to search for in the console.log file.
45 echo Build-only run, no console logs to check.
48 # Find console logs with errors
50 for i in ${rundir}/*/console.log
62 echo No errors in console logs.
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| /Linux-v5.4/drivers/accessibility/braille/ |
| D | braille_console.c | 5 * By default, shows console messages on the braille device.
14 #include <linux/console.h>
44 /* mini console */
53 /* show console ? (or show VC) */
59 static struct console *braille_co;
342 * Called from printk.c when console=brl is given
345 int braille_register_console(struct console *console, int index, in braille_register_console() argument
350 if (!(console->flags & CON_BRL)) in braille_register_console()
357 if (console->setup) { in braille_register_console()
358 ret = console->setup(console, console_options); in braille_register_console()
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| /Linux-v5.4/drivers/s390/char/ |
| D | sclp_con.c | 3 * SCLP line mode console driver
11 #include <linux/console.h>
30 /* List of free pages that can be used for console output buffering */
34 /* Pointer to current console buffer */
36 /* Timer for delayed output of console messages */
43 /* Output format for console messages */
134 * Drop oldest console buffer if sclp_con_drop is set
159 * Writes the given message to S390 system console
162 sclp_console_write(struct console *console, const char *message, in sclp_console_write() argument
177 /* make sure we have a console output buffer */ in sclp_console_write()
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| /Linux-v5.4/drivers/usb/serial/ |
| D | console.c | 3 * USB Serial Console driver
17 #include <linux/console.h>
29 static struct console usbcons;
33 * USB Serial console driver
36 * and implements a phony serial console in the same way that
43 * console speeds based on the command line arguments.
55 static int usb_console_setup(struct console *co, char *options) in usb_console_setup()
106 * no need to check the index here: if the index is wrong, console in usb_console_setup()
155 dev_err(&port->dev, "could not open USB console port\n"); in usb_console_setup()
174 /* The console is special in terms of closing the device so in usb_console_setup()
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