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Kernel: Give PTY's *actually* unique major ID's

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Okay, one "dunce hat" point for me. The new PTY majors conflicted with
PATAChannel. Now they are 200 for master and 201 for slave, not used
by anything else.. I hope!
This commit is contained in:
Andreas Kling 2019-12-09 21:03:39 +01:00
parent be459acaea
commit e9dda8d592
Notes: sideshowbarker 2024-07-19 10:54:20 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/e9dda8d5926
4 changed files with 7 additions and 3 deletions
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4
Kernel/Devices/Device.cpp
View File

@ -30,6 +30,10 @@ Device::Device(unsigned major, unsigned minor)
, m_minor(minor)
{
u32 device_id = encoded_device(major, minor);
auto it = all_devices().find(device_id);
if (it != all_devices().end()) {
dbg() << "Already registered " << major << "," << minor << ": " << it->value->class_name();
}
ASSERT(!all_devices().contains(device_id));
all_devices().set(device_id, this);
}

2
Kernel/FileSystem/DevPtsFS.cpp
View File

@ -69,7 +69,7 @@ RefPtr<Inode> DevPtsFS::get_inode(InodeIdentifier inode_id) const
return m_root_inode;
unsigned pty_index = inode_index_to_pty_index(inode_id.index());
auto* device = Device::get_device(11, pty_index);
auto* device = Device::get_device(201, pty_index);
ASSERT(device);
auto inode = adopt(*new DevPtsFSInode(const_cast<DevPtsFS&>(*this), inode_id.index()));

2
Kernel/TTY/MasterPTY.cpp
View File

@ -9,7 +9,7 @@
//#define MASTERPTY_DEBUG
MasterPTY::MasterPTY(unsigned index)
: CharacterDevice(100, index)
: CharacterDevice(200, index)
, m_slave(adopt(*new SlavePTY(*this, index)))
, m_index(index)
{

2
Kernel/TTY/SlavePTY.cpp
View File

@ -6,7 +6,7 @@
//#define SLAVEPTY_DEBUG
SlavePTY::SlavePTY(MasterPTY& master, unsigned index)
: TTY(101, index)
: TTY(201, index)
, m_master(master)
, m_index(index)
{