Add attributes to expose the product_id and firmware_version read
from the device firmware.
Signed-off-by: Dudley Du <d...@cypress.com>
Signed-off-by: Benson Leung <ble...@chromium.org>
---
drivers/input/mouse/cyapa.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/input/mouse/cyapa.c b/drivers/input/mouse/cyapa.c
index 51e9d44..97828f6 100644
--- a/drivers/input/mouse/cyapa.c
+++ b/drivers/input/mouse/cyapa.c
@@ -216,6 +216,8 @@ struct cyapa {
/* read from query data region. */
char product_id[16];
+ u8 fw_maj_ver; /* firmware major version. */
+ u8 fw_min_ver; /* firmware minor version. */
u8 btn_capability;
u8 gen;
int max_abs_x;
@@ -714,6 +716,9 @@ static int cyapa_get_query_data(struct cyapa *cyapa)
memcpy(&cyapa->product_id[13], &query_data[11], 2);
cyapa->product_id[15] = '\0';
+ cyapa->fw_maj_ver = query_data[15];
+ cyapa->fw_min_ver = query_data[16];
+
cyapa->btn_capability = query_data[19] & CAPABILITY_BTN_MASK;
cyapa->gen = query_data[20] & 0x0f;
@@ -1175,6 +1180,21 @@ done:
/*
* Sysfs Interface.
*/
+static ssize_t cyapa_show_fm_ver(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct cyapa *cyapa = dev_get_drvdata(dev);
+ return scnprintf(buf, PAGE_SIZE, "%d.%d\n", cyapa->fw_maj_ver,
+ cyapa->fw_min_ver);
+}
+
+static ssize_t cyapa_show_product_id(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct cyapa *cyapa = dev_get_drvdata(dev);
+ return scnprintf(buf, PAGE_SIZE, "%s\n", cyapa->product_id);
+}
+
static ssize_t cyapa_update_fw_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -1199,9 +1219,13 @@ static ssize_t cyapa_update_fw_store(struct device *dev,
return ret ? ret : count;
}
+static DEVICE_ATTR(firmware_version, S_IRUGO, cyapa_show_fm_ver, NULL);
+static DEVICE_ATTR(product_id, S_IRUGO, cyapa_show_product_id, NULL);
static DEVICE_ATTR(update_fw, S_IWUSR, NULL, cyapa_update_fw_store);
static struct attribute *cyapa_sysfs_entries[] = {
+ &dev_attr_firmware_version.attr,
+ &dev_attr_product_id.attr,
&dev_attr_update_fw.attr,
NULL,
};
--
1.8.1.3
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