49b9137a60
gb_audio_manager_module_descriptor's intf_id field maintains the information about the interface on which module is connected hence having an extra slot field is redundant. Thus remove the slot field and its associated code. Signed-off-by: Pankaj Bharadiya <pankaj.bharadiya@gmail.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Vaibhav Agarwal <vaibhav.sr@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
103 lines
2.2 KiB
C
103 lines
2.2 KiB
C
/*
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* Greybus operations
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*
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* Copyright 2015-2016 Google Inc.
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*
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* Released under the GPLv2 only.
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*/
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#include <linux/string.h>
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#include <linux/sysfs.h>
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#include "audio_manager.h"
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#include "audio_manager_private.h"
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static ssize_t manager_sysfs_add_store(
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struct kobject *kobj, struct kobj_attribute *attr,
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const char *buf, size_t count)
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{
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struct gb_audio_manager_module_descriptor desc = { {0} };
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int num = sscanf(buf,
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"name=%" GB_AUDIO_MANAGER_MODULE_NAME_LEN_SSCANF "s "
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"vid=%d pid=%d intf_id=%d i/p devices=0x%X o/p devices=0x%X",
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desc.name, &desc.vid, &desc.pid, &desc.intf_id,
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&desc.ip_devices, &desc.op_devices);
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if (num != 7)
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return -EINVAL;
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num = gb_audio_manager_add(&desc);
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if (num < 0)
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return -EINVAL;
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return count;
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}
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static struct kobj_attribute manager_add_attribute =
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__ATTR(add, 0664, NULL, manager_sysfs_add_store);
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static ssize_t manager_sysfs_remove_store(
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struct kobject *kobj, struct kobj_attribute *attr,
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const char *buf, size_t count)
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{
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int id;
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int num = kstrtoint(buf, 10, &id);
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if (num != 1)
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return -EINVAL;
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num = gb_audio_manager_remove(id);
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if (num)
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return num;
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return count;
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}
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static struct kobj_attribute manager_remove_attribute =
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__ATTR(remove, 0664, NULL, manager_sysfs_remove_store);
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static ssize_t manager_sysfs_dump_store(
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struct kobject *kobj, struct kobj_attribute *attr,
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const char *buf, size_t count)
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{
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int id;
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int num = kstrtoint(buf, 10, &id);
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if (num == 1) {
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num = gb_audio_manager_dump_module(id);
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if (num)
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return num;
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} else if (!strncmp("all", buf, 3)) {
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gb_audio_manager_dump_all();
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} else {
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return -EINVAL;
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}
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return count;
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}
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static struct kobj_attribute manager_dump_attribute =
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__ATTR(dump, 0664, NULL, manager_sysfs_dump_store);
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static void manager_sysfs_init_attribute(
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struct kobject *kobj, struct kobj_attribute *kattr)
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{
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int err;
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err = sysfs_create_file(kobj, &kattr->attr);
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if (err) {
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pr_warn("creating the sysfs entry for %s failed: %d\n",
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kattr->attr.name, err);
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}
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}
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void gb_audio_manager_sysfs_init(struct kobject *kobj)
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{
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manager_sysfs_init_attribute(kobj, &manager_add_attribute);
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manager_sysfs_init_attribute(kobj, &manager_remove_attribute);
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manager_sysfs_init_attribute(kobj, &manager_dump_attribute);
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}
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