[PATCH RFC 3/3] nvmem: add permission flags in nvmem_config
From: Srinivas Kandagatla <hidden>
Date: 2015-08-11 11:03:51
Also in:
linux-arm-kernel, linux-arm-msm, linux-devicetree, lkml
Subsystem:
nvmem framework, the rest · Maintainers:
Srinivas Kandagatla, Linus Torvalds
This patch adds perm variable to nvmem_config structure which will allow providers to specify the permissions required for the sysfs binary file. This permission is applied on top of root-only access permissions set by the core. Signed-off-by: Srinivas Kandagatla <redacted> --- drivers/nvmem/core.c | 1 + include/linux/nvmem-provider.h | 1 + 2 files changed, 2 insertions(+)
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 414ed23..7481387 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c@@ -312,6 +312,7 @@ struct nvmem_device *nvmem_register(const struct nvmem_config *config) config->read_only; nvmem->bin = bin_attr_template; nvmem->bin.attr.mode = nvmem->read_only ? : (S_IRUSR | S_IWUSR); + nvmem->bin.attr.mode |= config->perm; nvmem->bin.size = nvmem->size; device_initialize(&nvmem->dev);
diff --git a/include/linux/nvmem-provider.h b/include/linux/nvmem-provider.h
index 0b68caf..de9a61f 100644
--- a/include/linux/nvmem-provider.h
+++ b/include/linux/nvmem-provider.h@@ -23,6 +23,7 @@ struct nvmem_config { const struct nvmem_cell_info *cells; int ncells; bool read_only; + u16 perm; /* visibility in sysfs */ }; #if IS_ENABLED(CONFIG_NVMEM)
--
1.9.1