The patch titled
tty: Clarify documentation of ->write()
has been added to the -mm tree. Its filename is
tty-clarify-documentation-of-write.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
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------------------------------------------------------
Subject: tty: Clarify documentation of ->write()
From: Alan <alan@xxxxxxxxxxxxxxxxxxx>
The tty driver write method is different to the usual fops device write
methods as the buffer is already in kernel space. Clarify the docs since
someone writing a driver made that mistake.
Signed-off-by: Alan Cox <alan@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/tty.txt | 4 +++-
1 files changed, 3 insertions(+), 1 deletion(-)
diff -puN Documentation/tty.txt~tty-clarify-documentation-of-write Documentation/tty.txt
--- a/Documentation/tty.txt~tty-clarify-documentation-of-write
+++ a/Documentation/tty.txt
@@ -108,7 +108,9 @@ hardware driver through the function poi
structure:
write() Write a block of characters to the tty device.
- Returns the number of characters accepted.
+ Returns the number of characters accepted. The
+ character buffer passed to this method is already
+ in kernel space.
put_char() Queues a character for writing to the tty device.
If there is no room in the queue, the character is
_
Patches currently in -mm which might be from alan@xxxxxxxxxxxxxxxxxxx are
git-libata-all.patch
libata-warn-if-speed-limited-due-to-40-wire-cable-v2.patch
add-id_to_dma_mode-function-for-printing-dma-modes.patch
expose-set_mode-method-so-it-can-be-wrapped.patch
acpi-driver-support-for-pata.patch
libata-use-new-id_to_dma_mode-function-to-tidy-reporting.patch
libata-fix-hopefully-all-the-remaining-problems-with.patch
adjust-legacy-ide-resource-setting-v2.patch
resend-iphase-64bit-cleanup.patch
serial-serial_txx9-driver-update.patch
serial-serial_txx9-driver-update-fix.patch
drivers-scsi-ncr5380c-replacing-yield-with-a.patch
drivers-scsi-mca_53c9xc-save_flags-cli-removal.patch
x86_64-do-not-enable-the-nmi-watchdog-by-default.patch
driver_bfin_serial_core.patch
documentation-ask-driver-writers-to-provide-pm-support.patch
fixes-and-cleanups-for-earlyprintk-aka-boot-console.patch
tty-clarify-documentation-of-write.patch
edac-new-opteron-athlon64-memory-controller-driver.patch
edac-k8-driver-coding-tidy.patch
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