On 10/15/2012 05:42 AM, Christian Lamparter wrote:
It's a bit weird that you have three IN and OUT 0x3 eps. Is this
really true or is this a c&p error and your devices have more
than one interface configuration?
The endpoint configuration for my SU devices (both are the same)
look like this:
Interface Descriptor:
bEndpointAddress 0x83 EP 3 IN Bulk Data 512 bytes
bEndpointAddress 0x04 EP 4 OUT Bulk Data 512 bytes
bEndpointAddress 0x06 EP 6 OUT Bulk Data 512 bytes
bEndpointAddress 0x0d EP 13 OUT Bulk Data 512 bytes
It looks like that we should parse the endpoint descriptor and
get the first endpoint from there.
The confusion arose from me reporting the EP configuration for the USB Bluetooth
component of an RTL8723AE that I currently have installed. It has the
bidirectional EPs:
bEndpointAddress 0x81 EP 1 IN
bEndpointAddress 0x02 EP 2 OUT
bEndpointAddress 0x82 EP 2 IN
bEndpointAddress 0x03 EP 3 OUT
bEndpointAddress 0x83 EP 3 IN
bEndpointAddress 0x03 EP 3 OUT
bEndpointAddress 0x83 EP 3 IN
bEndpointAddress 0x03 EP 3 OUT
bEndpointAddress 0x83 EP 3 IN
bEndpointAddress 0x03 EP 3 OUT
bEndpointAddress 0x83 EP 3 IN
bEndpointAddress 0x03 EP 3 OUT
bEndpointAddress 0x83 EP 3 IN
bEndpointAddress 0x03 EP 3 OUT
bEndpointAddress 0x83 EP 3 IN
My RTL8191SU and the RTL8192SU both have the following:
bEndpointAddress 0x83 EP 3 IN
bEndpointAddress 0x04 EP 4 OUT
bEndpointAddress 0x06 EP 6 OUT
bEndpointAddress 0x0d EP 13 OUT
My two copies if RTL8188CUS chips that use rtl8192cu both have
bEndpointAddress 0x81 EP 1 IN
bEndpointAddress 0x02 EP 2 OUT
bEndpointAddress 0x03 EP 3 OUT
bEndpointAddress 0x84 EP 4 IN
Although these chips have two IN EPs, the first is the one in use, thus
searching for the first IN EP should be OK, and we can ignore the fact that the
chip has two IN EPs. I am currently trying to acquire a sample of the RTL8192DU
device with dual band operation on separate MACs. I think it registers as two
separate devices (at least the PCI version does), and it should not change the
situation. Even if it does, its initial driver will be in staging, and will not
use rtlwifi.
Larry
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