diff options
| author | Christian Gromm <christian.gromm@microchip.com> | 2016-09-12 16:26:13 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-13 15:01:29 +0200 |
| commit | bc5f96a15658f390aba8688408526542c9329d7e (patch) | |
| tree | aa5d84e5018871a16e367031a5c797fd16a79e81 /drivers/staging/most | |
| parent | 25b80dbe3fa6d76d8f19af0623d1fd8ed0dd671e (diff) | |
staging: most: core: show all linked channels
This patch is needed to have all linked channels being reported by the
show() function of the attribute file add_link. Currently user space can
only read back the latest link that has been established to a certain
channel.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/most')
| -rw-r--r-- | drivers/staging/most/mostcore/core.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c index db0606ca9f79..bd555ecfe0b9 100644 --- a/drivers/staging/most/mostcore/core.c +++ b/drivers/staging/most/mostcore/core.c @@ -848,7 +848,23 @@ static ssize_t show_add_link(struct most_aim_obj *aim_obj, struct most_aim_attribute *attr, char *buf) { - return snprintf(buf, PAGE_SIZE, "%s\n", aim_obj->add_link); + struct most_c_obj *c; + struct most_inst_obj *i; + int offs = 0; + + list_for_each_entry(i, &instance_list, list) { + list_for_each_entry(c, &i->channel_list, list) { + if (c->aim0.ptr == aim_obj->driver || + c->aim1.ptr == aim_obj->driver) { + offs += snprintf(buf + offs, PAGE_SIZE - offs, + "%s:%s\n", + kobject_name(&i->kobj), + kobject_name(&c->kobj)); + } + } + } + + return offs; } /** |