summaryrefslogtreecommitdiff
path: root/include/uapi/linux/mmc
diff options
context:
space:
mode:
authorWolfram Sang <wsa+renesas@sang-engineering.com>2018-12-03 22:56:47 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2018-12-17 10:26:24 +0300
commit20427e5db3f96fc054c6a6ad95606906b834deb1 (patch)
tree5bf259498cc18b2b7a566d75286d32c811107337 /include/uapi/linux/mmc
parent1970701f808095d28289c4add99a81be4ddd3790 (diff)
downloadlinux-20427e5db3f96fc054c6a6ad95606906b834deb1.tar.xz
mmc: document 'Reliable Write' bit in uapi header
If we use it this way, people should know about it. Also, replace true/false with nonzero/zero because the flag is not strictly a bool anymore. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/uapi/linux/mmc')
-rw-r--r--include/uapi/linux/mmc/ioctl.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/uapi/linux/mmc/ioctl.h b/include/uapi/linux/mmc/ioctl.h
index 45f369dc0a42..00c08120f3ba 100644
--- a/include/uapi/linux/mmc/ioctl.h
+++ b/include/uapi/linux/mmc/ioctl.h
@@ -5,7 +5,10 @@
#include <linux/types.h>
struct mmc_ioc_cmd {
- /* Implies direction of data. true = write, false = read */
+ /*
+ * Direction of data: nonzero = write, zero = read.
+ * Bit 31 selects 'Reliable Write' for RPMB.
+ */
int write_flag;
/* Application-specific command. true = precede with CMD55 */