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| author |   Geert Uytterhoeven <geert@linux-m68k.org> | 2021-02-07 14:05:43 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-09 12:27:32 +0100 |
| commit | 0566752c3e8681ec47fee37374cb38081d801e95 (patch) | |
| tree | 5d9f2a1465313ffa3e0d50bd6642b3386fc214e5 | |
| parent | uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED (diff) | |
| download | linux-dev-0566752c3e8681ec47fee37374cb38081d801e95.tar.xz linux-dev-0566752c3e8681ec47fee37374cb38081d801e95.zip | |
uapi: map_to_7segment: Update example in documentation
The device_attribute .show() and .store() methods gained an extra
parameter in v2.6.13, but the example in the documentation for the
7-segment header file was never updated. Add the missing parameters.
While at it, get rid of the (misspelled) deprecated symbolic
permissions, and switch to DEVICE_ATTR_RW(), which was introduced in
v3.11
Fixes: 54b6f35c99974e99 ("[PATCH] Driver core: change device_attribute callbacks")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20210207130543.2128980-1-geert@linux-m68k.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/uapi/linux/map_to_7segment.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/uapi/linux/map_to_7segment.h b/include/uapi/linux/map_to_7segment.h index 13a06e5e966e..8b02088f96e3 100644 --- a/include/uapi/linux/map_to_7segment.h +++ b/include/uapi/linux/map_to_7segment.h @@ -45,17 +45,22 @@ * In device drivers it is recommended, if required, to make the char map * accessible via the sysfs interface using the following scheme: * - * static ssize_t show_map(struct device *dev, char *buf) { + * static ssize_t map_seg7_show(struct device *dev, + * struct device_attribute *attr, char *buf) + * { * memcpy(buf, &map_seg7, sizeof(map_seg7)); * return sizeof(map_seg7); * } - * static ssize_t store_map(struct device *dev, const char *buf, size_t cnt) { + * static ssize_t map_seg7_store(struct device *dev, + * struct device_attribute *attr, const char *buf, + * size_t cnt) + * { * if(cnt != sizeof(map_seg7)) * return -EINVAL; * memcpy(&map_seg7, buf, cnt); * return cnt; * } - * static DEVICE_ATTR(map_seg7, PERMS_RW, show_map, store_map); + * static DEVICE_ATTR_RW(map_seg7); * * History: * 2005-05-31 RFC linux-kernel@vger.kernel.org |