DEV_OPEN(9) Network device support DEV_OPEN(9)NAME
dev_open - prepare an interface for use.
SYNOPSIS
int dev_open(struct net_device * dev);
ARGUMENTS
dev
device to open
DESCRIPTION
Takes a device from down to up state. The device's private open function is invoked and then the multicast lists are loaded. Finally the
device is moved into the up state and a NETDEV_UP message is sent to the netdev notifier chain.
Calling this function on an active interface is a nop. On a failure a negative errno code is returned.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 DEV_OPEN(9)
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DEVICE_CREATE(9) Device drivers infrastructure DEVICE_CREATE(9)NAME
device_create - creates a device and registers it with sysfs
SYNOPSIS
struct device * device_create(struct class * class, struct device * parent, dev_t devt, void * drvdata, const char * fmt, ...);
ARGUMENTS
class
pointer to the struct class that this device should be registered to
parent
pointer to the parent struct device of this new device, if any
devt
the dev_t for the char device to be added
drvdata
the data to be added to the device for callbacks
fmt
string for the device's name
...
variable arguments
DESCRIPTION
This function can be used by char device classes. A struct device will be created in sysfs, registered to the specified class.
A "dev" file will be created, showing the dev_t for the device, if the dev_t is not 0,0. If a pointer to a parent struct device is passed
in, the newly created struct device will be a child of that device in sysfs. The pointer to the struct device will be returned from the
call. Any further sysfs files that might be required can be created using this pointer.
Returns struct device pointer on success, or ERR_PTR on error.
NOTE
the struct class passed to this function must have previously been created with a call to class_create.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 DEVICE_CREATE(9)
hi
in my application there is a line with
open(/dev/mydevice,0);
it work good when it run manually,
but when try to run it within script
///////////////////////////////////////////
#!/bin/sh
./device_test 0 0 0 1 1 1 0 0 1
/////////////////////////////////////////
I receive 'Failed... (3 Replies)
Hi,
I'm trying to migrate the content of disk 'A' to disk 'B', that they belong to the same vg 'data'_vg'. Whe using pvmove, I get the following error: 'device-mapper: suspend ioctl failed: Interrupted system call'. I put down the whole trace:
pvmove -v "source_disk" "sink_disk"
... (0 Replies)
Hi All,
I have an server Sun Fire V245 for which we had been trying to patch.
We get a message that the patch has been applied successfully but while trying to reboot after activating the new lu, the server is not booting up. Had reinstalled lustarter pack, required patches during the patching... (5 Replies)