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| author | David S. Miller <davem@davemloft.net> | 2009-12-11 17:12:17 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-12-11 17:12:17 -0800 |
| commit | 501706565b2d4d2d40d0d301d5411ede099b8a6f (patch) | |
| tree | 142a18bf1f1e74a09dbfa27540b893ade0fd797d /Documentation/serial/tty.txt | |
| parent | e93737b0f0159a61772894943199fd3b6f315641 (diff) | |
| parent | 2fe77b81c77eed92c4c0439f74c8148a295b4a86 (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
include/net/tcp.h
Diffstat (limited to 'Documentation/serial/tty.txt')
| -rw-r--r-- | Documentation/serial/tty.txt | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/serial/tty.txt b/Documentation/serial/tty.txt index 8e65c4498c52..5e5349a4fcd2 100644 --- a/Documentation/serial/tty.txt +++ b/Documentation/serial/tty.txt @@ -42,7 +42,8 @@ TTY side interfaces: open() - Called when the line discipline is attached to the terminal. No other call into the line discipline for this tty will occur until it - completes successfully. Can sleep. + completes successfully. Returning an error will + prevent the ldisc from being attached. Can sleep. close() - This is called on a terminal when the line discipline is being unplugged. At the point of @@ -52,7 +53,7 @@ close() - This is called on a terminal when the line hangup() - Called when the tty line is hung up. The line discipline should cease I/O to the tty. No further calls into the ldisc code will occur. - Can sleep. + The return value is ignored. Can sleep. write() - A process is writing data through the line discipline. Multiple write calls are serialized @@ -83,6 +84,10 @@ ioctl() - Called when an ioctl is handed to the tty layer that might be for the ldisc. Multiple ioctl calls may occur in parallel. May sleep. +compat_ioctl() - Called when a 32 bit ioctl is handed to the tty layer + that might be for the ldisc. Multiple ioctl calls + may occur in parallel. May sleep. + Driver Side Interfaces: receive_buf() - Hand buffers of bytes from the driver to the ldisc |