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authorRalf Baechle <ralf@linux-mips.org>2000-04-19 04:00:00 +0000
committerRalf Baechle <ralf@linux-mips.org>2000-04-19 04:00:00 +0000
commit46e045034336a2cc90c1798cd7cc07af744ddfd6 (patch)
tree3b9b51fc482e729f663d25333e77fbed9aaa939a /drivers/usb/mdc800.c
parent31dc59d503a02e84c4de98826452acaeb56dc15a (diff)
Merge with Linux 2.3.99-pre4.
Diffstat (limited to 'drivers/usb/mdc800.c')
-rw-r--r--drivers/usb/mdc800.c74
1 files changed, 37 insertions, 37 deletions
diff --git a/drivers/usb/mdc800.c b/drivers/usb/mdc800.c
index c8063c927..a45f8c798 100644
--- a/drivers/usb/mdc800.c
+++ b/drivers/usb/mdc800.c
@@ -26,11 +26,19 @@
* To use the Camera you must support the USB Protocoll of the camera
* to the Kernel Node.
* The Driver uses a misc device Node. Create it with :
- * mknod /dev/mustek c 10 171
+ * mknod /dev/mustek c 180 32
*
* The driver supports only one camera.
*
* version 0.7.1
+ * MOD_INC and MOD_DEC are changed in usb_probe to prevent load/unload
+ * problems when compiled as Module.
+ * (04/04/2000)
+ *
+ * The mdc800 driver gets assigned the USB Minor 32-47. The Registration
+ * was updated to use these values.
+ * (26/03/2000)
+ *
* The Init und Exit Module Function are updated.
* (01/03/2000)
*
@@ -57,7 +65,6 @@
#include <linux/signal.h>
#include <linux/spinlock.h>
#include <linux/errno.h>
-#include <linux/miscdevice.h>
#include <linux/random.h>
#include <linux/poll.h>
#include <linux/init.h>
@@ -67,22 +74,22 @@
#include <linux/usb.h>
#define VERSION "0.7.1"
-#define RELEASE_DATE "(01/03/2000)"
+#define RELEASE_DATE "(26/03/2000)"
/* Vendor and Product Information */
#define MDC800_VENDOR_ID 0x055f
#define MDC800_PRODUCT_ID 0xa800
/* Timeouts (msec) */
-#define TO_READ_FROM_IRQ 4000
+#define TO_READ_FROM_IRQ 4000
#define TO_GET_READY 2000
-#define TO_DOWNLOAD_GET_READY 1500
-#define TO_DOWNLOAD_GET_BUSY 1500
-#define TO_WRITE_GET_READY 3000
-#define TO_DEFAULT_COMMAND 5000
+#define TO_DOWNLOAD_GET_READY 1500
+#define TO_DOWNLOAD_GET_BUSY 1500
+#define TO_WRITE_GET_READY 3000
+#define TO_DEFAULT_COMMAND 5000
-/* Minor Number of the device (create with mknod /dev/mustek c 10 171) */
-#define MDC800_DEVICE_MINOR 171
+/* Minor Number of the device (create with mknod /dev/mustek c 180 32) */
+#define MDC800_DEVICE_MINOR_BASE 32
/**************************************************************************
@@ -514,11 +521,20 @@ static int mdc800_getAnswerSize (char command)
static int mdc800_device_open (struct inode* inode, struct file *file)
{
int retval=0;
+
+ MOD_INC_USE_COUNT;
+
if (mdc800->state == NOT_CONNECTED)
+ {
+ MOD_DEC_USE_COUNT;
return -EBUSY;
+ }
if (mdc800->open)
+ {
+ MOD_DEC_USE_COUNT;
return -EBUSY;
+ }
mdc800->rw_lock=0;
mdc800->in_count=0;
@@ -535,10 +551,10 @@ static int mdc800_device_open (struct inode* inode, struct file *file)
if (usb_submit_urb (mdc800->irq_urb))
{
err ("request USB irq fails (submit_retval=%i urb_status=%i).",retval, mdc800->irq_urb->status);
+ MOD_DEC_USE_COUNT;
return -EIO;
}
- MOD_INC_USE_COUNT;
mdc800->open=1;
dbg ("Mustek MDC800 device opened.");
@@ -792,21 +808,6 @@ static ssize_t mdc800_device_write (struct file *file, const char *buf, size_t l
Init and Cleanup this driver (Structs and types)
****************************************************************************/
-
-/*
- * USB Driver Struct for this device
- */
-static struct usb_driver mdc800_usb_driver =
-{
- "mdc800",
- mdc800_usb_probe,
- mdc800_usb_disconnect,
- { 0,0 },
- 0,
- 0
-};
-
-
/* File Operations of this drivers */
static struct file_operations mdc800_device_ops =
{
@@ -828,17 +829,22 @@ static struct file_operations mdc800_device_ops =
};
+
/*
- * The Misc Device Configuration Struct
+ * USB Driver Struct for this device
*/
-static struct miscdevice mdc800_device =
+static struct usb_driver mdc800_usb_driver =
{
- MDC800_DEVICE_MINOR,
- "USB Mustek MDC800 Camera",
- &mdc800_device_ops
+ "mdc800",
+ mdc800_usb_probe,
+ mdc800_usb_disconnect,
+ { 0,0 },
+ &mdc800_device_ops,
+ MDC800_DEVICE_MINOR_BASE
};
+
/************************************************************************
Init and Cleanup this driver (Main Functions)
*************************************************************************/
@@ -872,8 +878,6 @@ int __init usb_mdc800_init (void)
/* Register the driver */
if (usb_register (&mdc800_usb_driver) < 0)
goto cleanup_on_fail;
- if (misc_register (&mdc800_device) < 0)
- goto cleanup_on_misc_register_fail;
info ("Mustek Digital Camera Driver " VERSION " (MDC800)");
info (RELEASE_DATE " Henning Zabel <henning@uni-paderborn.de>");
@@ -882,9 +886,6 @@ int __init usb_mdc800_init (void)
/* Clean driver up, when something fails */
-cleanup_on_misc_register_fail:
- usb_deregister (&mdc800_usb_driver);
-
cleanup_on_fail:
if (mdc800 != 0)
@@ -909,7 +910,6 @@ cleanup_on_fail:
void __exit usb_mdc800_cleanup (void)
{
usb_deregister (&mdc800_usb_driver);
- misc_deregister (&mdc800_device);
usb_free_urb (mdc800->irq_urb);
usb_free_urb (mdc800->download_urb);