From: Aristeu Sergio Rozanski Filho <aris@cathedrallabs.org>
To: linuxppc-dev@ozlabs.org
Subject: [PATCH] adb: create class devices for each handler
Date: Tue, 8 Aug 2006 12:45:35 -0300 [thread overview]
Message-ID: <20060808154535.GB3363@cathedrallabs.org> (raw)
This patch creates a class device for each registered ADB handler
(currently only adbhid) such as /sys/classes/adb/keyboard0/,
/sys/classes/adb/mouse0/. This is needed for the next patch, to create
a sysfs entry to make SYSRQ key configurable on ADB based machines.
Signed-off-by: Aristeu S. Rozanski F. <aris@cathedrallabs.org>
Acked-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Index: ppc-2.6/drivers/macintosh/adb.c
===================================================================
--- ppc-2.6.orig/drivers/macintosh/adb.c 2006-08-03 23:51:35.000000000 -0300
+++ ppc-2.6/drivers/macintosh/adb.c 2006-08-03 23:56:00.000000000 -0300
@@ -102,11 +102,22 @@
static void adbdev_init(void);
static int try_handler_change(int, int);
+static char *adb_device_id_string[] = {
+ [ADB_DONGLE] = "dongle",
+ [ADB_KEYBOARD] = "keyboard",
+ [ADB_MOUSE] = "mouse",
+ [ADB_TABLET] = "tablet",
+ [ADB_MODEM] = "modem",
+ [ADB_MISC] = "misc",
+};
+
static struct adb_handler {
void (*handler)(unsigned char *, int, struct pt_regs *, int);
int original_address;
int handler_id;
int busy;
+ char name[16];
+ struct class_device *device;
} adb_handler[16];
/*
@@ -541,6 +552,15 @@
write_lock_irq(&adb_handler_lock);
adb_handler[i].handler = handler;
write_unlock_irq(&adb_handler_lock);
+
+ snprintf(adb_handler[i].name,
+ sizeof(adb_handler[i].name), "%s%i",
+ adb_device_id_string[default_id], ids->nids);
+ adb_handler[i].device = class_device_create(
+ adb_dev_class, NULL,
+ MKDEV(0, 0), NULL,
+ adb_handler[i].name);
+ ids->device[ids->nids] = adb_handler[i].device;
ids->id[ids->nids++] = i;
}
}
@@ -563,6 +583,7 @@
}
ret = 0;
adb_handler[index].handler = NULL;
+ class_device_del(adb_handler[index].device);
}
write_unlock_irq(&adb_handler_lock);
up(&adb_handler_sem);
Index: ppc-2.6/include/linux/adb.h
===================================================================
--- ppc-2.6.orig/include/linux/adb.h 2006-08-03 23:51:35.000000000 -0300
+++ ppc-2.6/include/linux/adb.h 2006-08-03 23:57:56.000000000 -0300
@@ -3,6 +3,7 @@
*/
#ifndef __ADB_H
#define __ADB_H
+#include <linux/device.h>
/* ADB commands */
#define ADB_BUSRESET 0
@@ -58,6 +59,7 @@
struct adb_ids {
int nids;
unsigned char id[16];
+ struct class_device *device[16];
};
/* Structure which encapsulates a low-level ADB driver */
next reply other threads:[~2006-08-08 16:10 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-08 15:45 Aristeu Sergio Rozanski Filho [this message]
2006-09-20 13:44 ` [PATCH] adb: create class devices for each handler Aristeu Sergio Rozanski Filho
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