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authorMike Isely <isely@pobox.com>2009-01-14 04:22:56 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:42:21 -0300
commit13a887971b6c97751fce62ab803ee93a42a23c5d (patch)
tree53923a8e8a2fba36c519788fbade0322bfbe2b3d /drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
parentd166b02ea6b03766f6fd867fb1fef378a57683e5 (diff)
V4L/DVB (10237): pvrusb2: Generate a device-unique identifier
Implement a new internal function to create a string device identifier. This ID stays with the specific device, making it useful to user space to identify specific devices. We use the serial number if available; otherwise we give up and just spit out a unit/instance ID. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
index de7ee7264be6..d96f0f51076e 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h
@@ -195,8 +195,20 @@ struct pvr2_hdw {
struct mutex big_lock_mutex;
int big_lock_held; /* For debugging */
+ /* This is a simple string which identifies the instance of this
+ driver. It is unique within the set of existing devices, but
+ there is no attempt to keep the name consistent with the same
+ physical device each time. */
char name[32];
+ /* This is a simple string which identifies the physical device
+ instance itself - if possible. (If not possible, then it is
+ based on the specific driver instance, similar to name above.)
+ The idea here is that userspace might hopefully be able to use
+ this recognize specific tuners. It will encode a serial number,
+ if available. */
+ char identifier[32];
+
/* I2C stuff */
struct i2c_adapter i2c_adap;
struct i2c_algorithm i2c_algo;

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