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selectable 'major', patch by Hans-Andreas Engel <engel@node.ch> 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@9640 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex 2003-03-21 17:59:15 +00:00
parent b98d719e00
commit 79926901bc
1 changed files with 10 additions and 7 deletions
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17
drivers/mga_vid.c
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@ -29,6 +29,7 @@
*/
//It's entirely possible this major conflicts with something else
//use the 'major' parameter to override the default major number (178)
/* mknod /dev/mga_vid c 178 0 */
#include <linux/config.h>
@ -68,7 +69,7 @@
#define TRUE 1
#define FALSE 0
#define MGA_VID_MAJOR 178
#define DEFAULT_MGA_VID_MAJOR 178
//#define MGA_VIDMEM_SIZE mga_ram_size
@ -270,6 +271,7 @@ static uint32_t mga_top_reserved = 0; // reserved space for console font (matrox
static int mga_brightness = 0; // initial brightness
static int mga_contrast = 0; // initial contrast
static int mga_number = 0; // which device/card is taken
static int major = DEFAULT_MGA_VID_MAJOR;
//static int mga_force_memsize = 0;
@ -279,6 +281,7 @@ MODULE_PARM(mga_brightness, "i");
MODULE_PARM(mga_contrast, "i");
MODULE_PARM(mga_number, "i");
MODULE_PARM_DESC(mga_number, "selects matrox device/card (0=first)");
MODULE_PARM(major, "i");
static struct pci_dev *pci_dev;
@ -1630,17 +1633,17 @@ extern devfs_handle_t devfs_register (devfs_handle_t dir, const char *name,
if ((dev_handle = devfs_register(
NULL,
"mga_vid", DEVFS_FL_NONE,
MGA_VID_MAJOR, 0,
major, 0,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IFCHR,
&mga_vid_fops, NULL)) == NULL)
{
printk(KERN_ERR "mga_vid: unable to get major: %d (devfs) => fallback to non-devfs mode\n", MGA_VID_MAJOR);
printk(KERN_ERR "mga_vid: unable to get major: %d (devfs) => fallback to non-devfs mode\n", major);
// return -EIO;
}
#endif
if(register_chrdev(MGA_VID_MAJOR, "mga_vid", &mga_vid_fops))
if(register_chrdev(major, "mga_vid", &mga_vid_fops))
{
printk(KERN_ERR "mga_vid: unable to get major: %d\n", MGA_VID_MAJOR);
printk(KERN_ERR "mga_vid: unable to get major: %d\n", major);
return -EIO;
}
@ -1650,7 +1653,7 @@ extern devfs_handle_t devfs_register (devfs_handle_t dir, const char *name,
#ifdef CONFIG_DEVFS_FS
if(dev_handle) devfs_unregister(dev_handle);
#endif
unregister_chrdev(MGA_VID_MAJOR, "mga_vid");
unregister_chrdev(major, "mga_vid");
return -EINVAL;
}
mga_param_buff = kmalloc(PARAM_BUFF_SIZE,GFP_KERNEL);
@ -1682,6 +1685,6 @@ void cleanup_module(void)
#ifdef CONFIG_DEVFS_FS
if(dev_handle) devfs_unregister(dev_handle);
#endif
unregister_chrdev(MGA_VID_MAJOR, "mga_vid");
unregister_chrdev(major, "mga_vid");
}