diff options
Diffstat (limited to 'mpm/python/usrp_mpm/xports')
| -rw-r--r-- | mpm/python/usrp_mpm/xports/xportmgr_liberio.py | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/mpm/python/usrp_mpm/xports/xportmgr_liberio.py b/mpm/python/usrp_mpm/xports/xportmgr_liberio.py index f7c1861af..1b4f87fbf 100644 --- a/mpm/python/usrp_mpm/xports/xportmgr_liberio.py +++ b/mpm/python/usrp_mpm/xports/xportmgr_liberio.py @@ -8,6 +8,7 @@ Liberio Transport manager """ from builtins import object +import pyudev class XportMgrLiberio(object): """ @@ -18,8 +19,19 @@ class XportMgrLiberio(object): # Number of available DMA channels max_chan = 4 - def __init__(self, log): + def __init__(self, log, max_chan=-1): self.log = log.getChild('Liberio') + if max_chan < 0: + context = pyudev.Context() + rx_of_nodes = list(context.list_devices(subsystem="platform", + OF_COMPATIBLE_0="ettus,usrp-rx-dma")) + tx_of_nodes = list(context.list_devices(subsystem="platform", + OF_COMPATIBLE_0="ettus,usrp-tx-dma")) + self.max_chan = min(len(rx_of_nodes), len(tx_of_nodes)) + self.log.debug("Found {} channels".format(self.max_chan)) + else: + self.max_chan = max_chan + self.log.debug("Reporting {} channels".format(self.max_chan)) def init(self, args): """ |