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dd9f1fc1a4
* 添加sysfs * 注册sysfs * 添加sysfs相关 * 添加rust-anlyzer辅助配置 * 将设备与sysfs相关联 * 添加单独的文件管理sysfs下的文件夹
34 lines
1.1 KiB
Rust
34 lines
1.1 KiB
Rust
use super::{LockedSysFSInode, SYS_DEVICES_INODE};
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use crate::{filesystem::vfs::IndexNode, syscall::SystemError};
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use alloc::sync::Arc;
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/// @brief: 注册device，在sys/devices下生成文件夹
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/// @parameter device_name: 类文件夹名
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/// @return: 操作成功，返回inode，操作失败，返回错误码
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#[inline]
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#[allow(dead_code)]
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pub fn device_register(device_name: &str) -> Result<Arc<dyn IndexNode>, SystemError> {
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let binding: Arc<dyn IndexNode> = SYS_DEVICES_INODE();
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binding
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.as_any_ref()
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.downcast_ref::<LockedSysFSInode>()
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.ok_or(SystemError::E2BIG)
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.unwrap()
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.add_dir(device_name)
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}
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/// @brief: 操作bus，在sys/devices删除文件夹
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/// @parameter device_name: 总线文件夹名
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/// @return: 操作成功，返回()，操作失败，返回错误码
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#[inline]
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#[allow(dead_code)]
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pub fn device_unregister(device_name: &str) -> Result<(), SystemError> {
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let binding: Arc<dyn IndexNode> = SYS_DEVICES_INODE();
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binding
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.as_any_ref()
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.downcast_ref::<LockedSysFSInode>()
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.ok_or(SystemError::E2BIG)
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.unwrap()
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.remove(device_name)
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}
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