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Changed minor number of /dev/zero from 6 to 5.

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(Make sure to update your system accordingly or /dev/zero won't work.)
Cleaned up comments in MEMORY driver.
This commit is contained in:
Jorrit Herder 2005-08-05 09:43:22 +00:00
parent b96c389e78
commit c9ab8cce43
3 changed files with 7 additions and 7 deletions
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2
commands/scripts/MAKEDEV.sh
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@ -61,7 +61,7 @@ do
$e mknod kmem c 1 2; $e chmod 640 kmem $e mknod kmem c 1 2; $e chmod 640 kmem
$e mknod null c 1 3; $e chmod 666 null $e mknod null c 1 3; $e chmod 666 null
$e mknod boot b 1 4; $e chmod 600 ram $e mknod boot b 1 4; $e chmod 600 ram
$e mknod zero c 1 6; $e chmod 644 zero $e mknod zero c 1 5; $e chmod 644 zero
$e chgrp kmem ram mem kmem null boot zero $e chgrp kmem ram mem kmem null boot zero
;; ;;
fd[0-3]) fd[0-3])

10
drivers/memory/memory.c
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@ -23,7 +23,7 @@
#include "assert.h" #include "assert.h"
#define NR_DEVS 7 /* number of minor devices */ #define NR_DEVS 6 /* number of minor devices */
PRIVATE struct device m_geom[NR_DEVS]; /* base and size of each device */ PRIVATE struct device m_geom[NR_DEVS]; /* base and size of each device */
PRIVATE int m_seg[NR_DEVS]; /* segment index of each device */ PRIVATE int m_seg[NR_DEVS]; /* segment index of each device */
@ -72,8 +72,9 @@ PRIVATE char dev_zero[ZERO_BUF_SIZE];
*===========================================================================*/ *===========================================================================*/
PUBLIC void main(void) PUBLIC void main(void)
{ {
m_init(); /* initialize the memory driver */ /* Main program. Initialize the memory driver and start the main loop. */
driver_task(&m_dtab); /* start driver's main loop */ m_init();
driver_task(&m_dtab);
} }
@ -95,7 +96,6 @@ PRIVATE struct device *m_prepare(device)
int device; int device;
{ {
/* Prepare for I/O on a device: check if the minor device number is ok. */ /* Prepare for I/O on a device: check if the minor device number is ok. */
if (device < 0 || device >= NR_DEVS) return(NIL_DEV); if (device < 0 || device >= NR_DEVS) return(NIL_DEV);
m_device = device; m_device = device;
@ -139,7 +139,7 @@ unsigned nr_req; /* length of request vector */
if (opcode == DEV_GATHER) return(OK); /* always at EOF */ if (opcode == DEV_GATHER) return(OK); /* always at EOF */
break; break;
/* Virtual copying. For boot device. */ /* Virtual copying. For RAM disk, kernel memory and boot device. */
case RAM_DEV: case RAM_DEV:
case KMEM_DEV: case KMEM_DEV:
case BOOT_DEV: case BOOT_DEV:

2
include/minix/dmap.h
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@ -40,7 +40,7 @@ extern struct dmap {
# define KMEM_DEV 2 /* minor device for /dev/kmem */ # define KMEM_DEV 2 /* minor device for /dev/kmem */
# define NULL_DEV 3 /* minor device for /dev/null */ # define NULL_DEV 3 /* minor device for /dev/null */
# define BOOT_DEV 4 /* minor device for /dev/boot */ # define BOOT_DEV 4 /* minor device for /dev/boot */
# define ZERO_DEV 6 /* minor device for /dev/zero */ # define ZERO_DEV 5 /* minor device for /dev/zero */
/* Full device numbers that are special to the boot monitor and FS. */ /* Full device numbers that are special to the boot monitor and FS. */
# define DEV_RAM 0x0100 /* device number of /dev/ram */ # define DEV_RAM 0x0100 /* device number of /dev/ram */