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| author |   Daniel Kurtz <djkurtz@chromium.org> | 2012-06-28 21:08:09 +0800 |
|---|---|---|
| committer |   Henrik Rydberg <rydberg@euromail.se> | 2012-06-29 15:58:03 +0200 |
| commit | 91630955cb4c9899aa4521d1459837c66c5e9c7a (patch) | |
| tree | 617cf985a9a23ad17e6192bb3c6c045caea344c1 /drivers/input/touchscreen/atmel_mxt_ts.c | |
| parent | Input: atmel_mxt_ts - optimize reading objects in object sysfs entry (diff) | |
| download | linux-dev-91630955cb4c9899aa4521d1459837c66c5e9c7a.tar.xz linux-dev-91630955cb4c9899aa4521d1459837c66c5e9c7a.zip | |
Input: atmel_mxt_ts - print less overhead when dumping objects
Conserve limited (PAGE_SIZE) sysfs output buffer space by only showing
readable objects and not printing the object's index, which is not useful
to userspace.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Diffstat (limited to '')
| -rw-r--r-- | drivers/input/touchscreen/atmel_mxt_ts.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 94dd1d156a98..c8cfd7b3dc9e 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -897,15 +897,11 @@ static ssize_t mxt_object_show(struct device *dev, for (i = 0; i < data->info.object_num; i++) { object = data->object_table + i; - count += scnprintf(buf + count, PAGE_SIZE - count, - "Object[%d] (Type %d)\n", - i + 1, object->type); - - if (!mxt_object_readable(object->type)) { - count += scnprintf(buf + count, PAGE_SIZE - count, - "\n"); + if (!mxt_object_readable(object->type)) continue; - } + + count += scnprintf(buf + count, PAGE_SIZE - count, + "T%u:\n", object->type); error = __mxt_read_reg(data->client, object->start_address, object->size + 1, obuf); |