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228 lines
5.6 KiB
228 lines
5.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* socket_sysfs.c -- most of socket-related sysfs output |
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* |
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* (C) 2003 - 2004 Dominik Brodowski |
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*/ |
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#include <linux/module.h> |
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#include <linux/moduleparam.h> |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/string.h> |
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#include <linux/major.h> |
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#include <linux/errno.h> |
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#include <linux/mm.h> |
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#include <linux/interrupt.h> |
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#include <linux/timer.h> |
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#include <linux/ioport.h> |
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#include <linux/delay.h> |
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#include <linux/pm.h> |
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#include <linux/device.h> |
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#include <linux/mutex.h> |
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#include <asm/irq.h> |
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#include <pcmcia/ss.h> |
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#include <pcmcia/cistpl.h> |
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#include <pcmcia/cisreg.h> |
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#include <pcmcia/ds.h> |
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#include "cs_internal.h" |
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#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev) |
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static ssize_t pccard_show_type(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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if (!(s->state & SOCKET_PRESENT)) |
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return -ENODEV; |
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if (s->state & SOCKET_CARDBUS) |
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return sprintf(buf, "32-bit\n"); |
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return sprintf(buf, "16-bit\n"); |
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} |
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static DEVICE_ATTR(card_type, 0444, pccard_show_type, NULL); |
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static ssize_t pccard_show_voltage(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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if (!(s->state & SOCKET_PRESENT)) |
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return -ENODEV; |
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if (s->socket.Vcc) |
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return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, |
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s->socket.Vcc % 10); |
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return sprintf(buf, "X.XV\n"); |
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} |
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static DEVICE_ATTR(card_voltage, 0444, pccard_show_voltage, NULL); |
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static ssize_t pccard_show_vpp(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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if (!(s->state & SOCKET_PRESENT)) |
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return -ENODEV; |
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return sprintf(buf, "%d.%dV\n", s->socket.Vpp / 10, s->socket.Vpp % 10); |
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} |
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static DEVICE_ATTR(card_vpp, 0444, pccard_show_vpp, NULL); |
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static ssize_t pccard_show_vcc(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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if (!(s->state & SOCKET_PRESENT)) |
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return -ENODEV; |
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return sprintf(buf, "%d.%dV\n", s->socket.Vcc / 10, s->socket.Vcc % 10); |
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} |
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static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL); |
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static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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if (!count) |
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return -EINVAL; |
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pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT); |
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return count; |
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} |
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static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); |
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static ssize_t pccard_show_card_pm_state(struct device *dev, |
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struct device_attribute *attr, |
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char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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return sprintf(buf, "%s\n", s->state & SOCKET_SUSPEND ? "off" : "on"); |
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} |
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static ssize_t pccard_store_card_pm_state(struct device *dev, |
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struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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ssize_t ret = count; |
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if (!count) |
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return -EINVAL; |
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if (!strncmp(buf, "off", 3)) |
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pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND); |
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else { |
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if (!strncmp(buf, "on", 2)) |
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pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME); |
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else |
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ret = -EINVAL; |
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} |
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return ret; |
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} |
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static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state); |
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static ssize_t pccard_store_eject(struct device *dev, |
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struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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if (!count) |
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return -EINVAL; |
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pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT); |
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return count; |
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} |
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static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); |
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static ssize_t pccard_show_irq_mask(struct device *dev, |
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struct device_attribute *attr, |
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char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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return sprintf(buf, "0x%04x\n", s->irq_mask); |
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} |
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static ssize_t pccard_store_irq_mask(struct device *dev, |
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struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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ssize_t ret; |
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struct pcmcia_socket *s = to_socket(dev); |
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u32 mask; |
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if (!count) |
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return -EINVAL; |
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ret = sscanf(buf, "0x%x\n", &mask); |
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if (ret == 1) { |
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mutex_lock(&s->ops_mutex); |
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s->irq_mask &= mask; |
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mutex_unlock(&s->ops_mutex); |
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ret = 0; |
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} |
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return ret ? ret : count; |
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} |
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static DEVICE_ATTR(card_irq_mask, 0600, pccard_show_irq_mask, pccard_store_irq_mask); |
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static ssize_t pccard_show_resource(struct device *dev, |
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struct device_attribute *attr, char *buf) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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return sprintf(buf, "%s\n", s->resource_setup_done ? "yes" : "no"); |
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} |
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static ssize_t pccard_store_resource(struct device *dev, |
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struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct pcmcia_socket *s = to_socket(dev); |
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if (!count) |
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return -EINVAL; |
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mutex_lock(&s->ops_mutex); |
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if (!s->resource_setup_done) |
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s->resource_setup_done = 1; |
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mutex_unlock(&s->ops_mutex); |
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pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); |
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return count; |
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} |
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static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); |
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static struct attribute *pccard_socket_attributes[] = { |
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&dev_attr_card_type.attr, |
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&dev_attr_card_voltage.attr, |
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&dev_attr_card_vpp.attr, |
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&dev_attr_card_vcc.attr, |
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&dev_attr_card_insert.attr, |
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&dev_attr_card_pm_state.attr, |
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&dev_attr_card_eject.attr, |
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&dev_attr_card_irq_mask.attr, |
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&dev_attr_available_resources_setup_done.attr, |
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NULL, |
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}; |
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static const struct attribute_group socket_attrs = { |
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.attrs = pccard_socket_attributes, |
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}; |
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int pccard_sysfs_add_socket(struct device *dev) |
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{ |
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return sysfs_create_group(&dev->kobj, &socket_attrs); |
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} |
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void pccard_sysfs_remove_socket(struct device *dev) |
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{ |
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sysfs_remove_group(&dev->kobj, &socket_attrs); |
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}
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