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| DEBUGFS_CREATE_U32_A(9) | The debugfs filesystem | DEBUGFS_CREATE_U32_A(9) |
NAME¶
debugfs_create_u32_array - create a debugfs file that is used to read u32 array.
SYNOPSIS¶
struct dentry * debugfs_create_u32_array(const char * name, umode_t mode, struct dentry * parent, u32 * array, u32 elements);
ARGUMENTS¶
const char * name
a pointer to a string containing the name of the file to
create.
umode_t mode
the permission that the file should have.
struct dentry * parent
a pointer to the parent dentry for this file. This should
be a directory dentry if set. If this parameter is NULL, then the file
will be created in the root of the debugfs filesystem.
u32 * array
u32 array that provides data.
u32 elements
total number of elements in the array.
DESCRIPTION¶
This function creates a file in debugfs with the given name that exports array as data. If the mode variable is so set it can be read from. Writing is not supported. Seek within the file is also not supported. Once array is created its size can not be changed.
The function returns a pointer to dentry on success. If debugfs is not enabled in the kernel, the value -ENODEV will be returned.
COPYRIGHT¶
| September 2017 | Kernel Hackers Manual 4.12 |