Skip to content
Projects
Groups
Snippets
Help
Loading...
Help
Support
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
L
linux
Project overview
Project overview
Details
Activity
Releases
Repository
Repository
Files
Commits
Branches
Tags
Contributors
Graph
Compare
Issues
0
Issues
0
List
Boards
Labels
Milestones
Merge Requests
0
Merge Requests
0
Analytics
Analytics
Repository
Value Stream
Wiki
Wiki
Snippets
Snippets
Members
Members
Collapse sidebar
Close sidebar
Activity
Graph
Create a new issue
Commits
Issue Boards
Open sidebar
nexedi
linux
Commits
7e411172
Commit
7e411172
authored
Apr 23, 2003
by
Alexander Viro
Committed by
Christoph Hellwig
Apr 23, 2003
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
[PATCH] tty cleanups (3/12)
/proc/tty/drivers converted to seq_file
parent
27e8099f
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
89 additions
and
64 deletions
+89
-64
fs/proc/proc_tty.c
fs/proc/proc_tty.c
+89
-64
No files found.
fs/proc/proc_tty.c
View file @
7e411172
...
@@ -12,13 +12,12 @@
...
@@ -12,13 +12,12 @@
#include <linux/proc_fs.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <linux/stat.h>
#include <linux/tty.h>
#include <linux/tty.h>
#include <linux/seq_file.h>
#include <asm/bitops.h>
#include <asm/bitops.h>
extern
struct
tty_ldisc
ldiscs
[];
extern
struct
tty_ldisc
ldiscs
[];
static
int
tty_drivers_read_proc
(
char
*
page
,
char
**
start
,
off_t
off
,
int
count
,
int
*
eof
,
void
*
data
);
static
int
tty_ldiscs_read_proc
(
char
*
page
,
char
**
start
,
off_t
off
,
static
int
tty_ldiscs_read_proc
(
char
*
page
,
char
**
start
,
off_t
off
,
int
count
,
int
*
eof
,
void
*
data
);
int
count
,
int
*
eof
,
void
*
data
);
...
@@ -30,72 +29,95 @@ static struct proc_dir_entry *proc_tty_ldisc, *proc_tty_driver;
...
@@ -30,72 +29,95 @@ static struct proc_dir_entry *proc_tty_ldisc, *proc_tty_driver;
/*
/*
* This is the handler for /proc/tty/drivers
* This is the handler for /proc/tty/drivers
*/
*/
static
int
tty_drivers_read_proc
(
char
*
page
,
char
**
start
,
off_t
off
,
static
int
show_tty_driver
(
struct
seq_file
*
m
,
void
*
v
)
int
count
,
int
*
eof
,
void
*
data
)
{
{
int
len
=
0
;
struct
tty_driver
*
p
=
v
;
off_t
begin
=
0
;
struct
tty_driver
*
p
;
seq_printf
(
m
,
"%-20s "
,
p
->
driver_name
?
p
->
driver_name
:
"unknown"
);
char
range
[
20
],
deftype
[
20
];
seq_printf
(
m
,
"/dev/%-8s "
,
p
->
name
);
char
*
type
;
if
(
p
->
num
>
1
)
{
char
range
[
20
];
list_for_each_entry
(
p
,
&
tty_drivers
,
tty_drivers
)
{
sprintf
(
range
,
"%d-%d"
,
p
->
minor_start
,
if
(
p
->
num
>
1
)
p
->
minor_start
+
p
->
num
-
1
);
sprintf
(
range
,
"%d-%d"
,
p
->
minor_start
,
seq_printf
(
m
,
"%3d %7s "
,
p
->
major
,
range
);
p
->
minor_start
+
p
->
num
-
1
);
}
else
{
seq_printf
(
m
,
"%3d %7d "
,
p
->
major
,
p
->
minor_start
);
}
switch
(
p
->
type
)
{
case
TTY_DRIVER_TYPE_SYSTEM
:
seq_printf
(
m
,
"system"
);
if
(
p
->
subtype
==
SYSTEM_TYPE_TTY
)
seq_printf
(
m
,
":/dev/tty"
);
else
if
(
p
->
subtype
==
SYSTEM_TYPE_SYSCONS
)
seq_printf
(
m
,
":console"
);
else
if
(
p
->
subtype
==
SYSTEM_TYPE_CONSOLE
)
seq_printf
(
m
,
":vtmaster"
);
break
;
case
TTY_DRIVER_TYPE_CONSOLE
:
seq_printf
(
m
,
"console"
);
break
;
case
TTY_DRIVER_TYPE_SERIAL
:
seq_printf
(
m
,
"serial"
);
if
(
p
->
subtype
==
2
)
seq_printf
(
m
,
":callout"
);
break
;
case
TTY_DRIVER_TYPE_PTY
:
if
(
p
->
subtype
==
PTY_TYPE_MASTER
)
seq_printf
(
m
,
"pty:master"
);
else
if
(
p
->
subtype
==
PTY_TYPE_SLAVE
)
seq_printf
(
m
,
"pty:slave"
);
else
else
sprintf
(
range
,
"%d"
,
p
->
minor_start
);
seq_printf
(
m
,
"pty"
);
switch
(
p
->
type
)
{
break
;
case
TTY_DRIVER_TYPE_SYSTEM
:
default:
if
(
p
->
subtype
==
SYSTEM_TYPE_TTY
)
seq_printf
(
m
,
"type:%d.%d"
,
p
->
type
,
p
->
subtype
);
type
=
"system:/dev/tty"
;
else
if
(
p
->
subtype
==
SYSTEM_TYPE_SYSCONS
)
type
=
"system:console"
;
else
if
(
p
->
subtype
==
SYSTEM_TYPE_CONSOLE
)
type
=
"system:vtmaster"
;
else
type
=
"system"
;
break
;
case
TTY_DRIVER_TYPE_CONSOLE
:
type
=
"console"
;
break
;
case
TTY_DRIVER_TYPE_SERIAL
:
if
(
p
->
subtype
==
2
)
type
=
"serial:callout"
;
else
type
=
"serial"
;
break
;
case
TTY_DRIVER_TYPE_PTY
:
if
(
p
->
subtype
==
PTY_TYPE_MASTER
)
type
=
"pty:master"
;
else
if
(
p
->
subtype
==
PTY_TYPE_SLAVE
)
type
=
"pty:slave"
;
else
type
=
"pty"
;
break
;
default:
sprintf
(
deftype
,
"type:%d.%d"
,
p
->
type
,
p
->
subtype
);
type
=
deftype
;
break
;
}
len
+=
sprintf
(
page
+
len
,
"%-20s /dev/%-8s %3d %7s %s
\n
"
,
p
->
driver_name
?
p
->
driver_name
:
"unknown"
,
p
->
name
,
p
->
major
,
range
,
type
);
if
(
len
+
begin
>
off
+
count
)
break
;
if
(
len
+
begin
<
off
)
{
begin
+=
len
;
len
=
0
;
}
}
}
if
(
!
p
)
seq_putc
(
m
,
'\n'
);
*
eof
=
1
;
return
0
;
if
(
off
>=
len
+
begin
)
}
return
0
;
*
start
=
page
+
(
off
-
begin
);
/* iterator */
return
((
count
<
begin
+
len
-
off
)
?
count
:
begin
+
len
-
off
);
static
void
*
t_start
(
struct
seq_file
*
m
,
loff_t
*
pos
)
{
struct
list_head
*
p
;
loff_t
l
=
*
pos
;
list_for_each
(
p
,
&
tty_drivers
)
if
(
!
l
--
)
return
list_entry
(
p
,
struct
tty_driver
,
tty_drivers
);
return
NULL
;
}
static
void
*
t_next
(
struct
seq_file
*
m
,
void
*
v
,
loff_t
*
pos
)
{
struct
list_head
*
p
=
((
struct
tty_driver
*
)
v
)
->
tty_drivers
.
next
;
(
*
pos
)
++
;
return
p
==&
tty_drivers
?
NULL
:
list_entry
(
p
,
struct
tty_driver
,
tty_drivers
);
}
}
static
void
t_stop
(
struct
seq_file
*
m
,
void
*
v
)
{
}
static
struct
seq_operations
tty_drivers_op
=
{
.
start
=
t_start
,
.
next
=
t_next
,
.
stop
=
t_stop
,
.
show
=
show_tty_driver
};
static
int
tty_drivers_open
(
struct
inode
*
inode
,
struct
file
*
file
)
{
return
seq_open
(
file
,
&
tty_drivers_op
);
}
static
struct
file_operations
proc_tty_drivers_operations
=
{
.
open
=
tty_drivers_open
,
.
read
=
seq_read
,
.
llseek
=
seq_lseek
,
.
release
=
seq_release
,
};
/*
/*
* This is the handler for /proc/tty/ldiscs
* This is the handler for /proc/tty/ldiscs
*/
*/
...
@@ -170,11 +192,14 @@ void proc_tty_unregister_driver(struct tty_driver *driver)
...
@@ -170,11 +192,14 @@ void proc_tty_unregister_driver(struct tty_driver *driver)
*/
*/
void
__init
proc_tty_init
(
void
)
void
__init
proc_tty_init
(
void
)
{
{
struct
proc_dir_entry
*
entry
;
if
(
!
proc_mkdir
(
"tty"
,
0
))
if
(
!
proc_mkdir
(
"tty"
,
0
))
return
;
return
;
proc_tty_ldisc
=
proc_mkdir
(
"tty/ldisc"
,
0
);
proc_tty_ldisc
=
proc_mkdir
(
"tty/ldisc"
,
0
);
proc_tty_driver
=
proc_mkdir
(
"tty/driver"
,
0
);
proc_tty_driver
=
proc_mkdir
(
"tty/driver"
,
0
);
create_proc_read_entry
(
"tty/ldiscs"
,
0
,
0
,
tty_ldiscs_read_proc
,
NULL
);
create_proc_read_entry
(
"tty/ldiscs"
,
0
,
0
,
tty_ldiscs_read_proc
,
NULL
);
create_proc_read_entry
(
"tty/drivers"
,
0
,
0
,
tty_drivers_read_proc
,
NULL
);
entry
=
create_proc_entry
(
"tty/drivers"
,
0
,
NULL
);
if
(
entry
)
entry
->
proc_fops
=
&
proc_tty_drivers_operations
;
}
}
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment