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usb: gadget: storage_common: add methods to show/store 'cdrom' and 'removable'

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This will be required by configfs integration.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Andrzej Pietrasiewicz 2013-10-09 10:06:04 +02:00 committed by Felipe Balbi
parent 77850ae286
commit 864328ef8e
2 changed files with 47 additions and 0 deletions
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42
drivers/usb/gadget/storage_common.c
View File

@ -359,6 +359,17 @@ ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
}
EXPORT_SYMBOL(fsg_show_file);
ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf)
{
return sprintf(buf, "%u\n", curlun->cdrom);
}
EXPORT_SYMBOL(fsg_show_cdrom);
ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf)
{
return sprintf(buf, "%u\n", curlun->removable);
}
EXPORT_SYMBOL(fsg_show_removable);
ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count)
@ -439,4 +450,35 @@ ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
}
EXPORT_SYMBOL(fsg_store_file);
ssize_t fsg_store_cdrom(struct fsg_lun *curlun, const char *buf, size_t count)
{
unsigned cdrom;
int ret;
ret = kstrtouint(buf, 2, &cdrom);
if (ret)
return ret;
curlun->cdrom = cdrom;
return count;
}
EXPORT_SYMBOL(fsg_store_cdrom);
ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf,
size_t count)
{
unsigned removable;
int ret;
ret = kstrtouint(buf, 2, &removable);
if (ret)
return ret;
curlun->removable = removable;
return count;
}
EXPORT_SYMBOL(fsg_store_removable);
MODULE_LICENSE("GPL");

5
drivers/usb/gadget/storage_common.h
View File

@ -214,10 +214,15 @@ ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf);
ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf);
ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
char *buf);
ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf);
ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf);
ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count);
ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count);
ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
const char *buf, size_t count);
ssize_t fsg_store_cdrom(struct fsg_lun *curlun, const char *buf, size_t count);
ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf,
size_t count);
#endif /* USB_STORAGE_COMMON_H */