Hello,
I am using davinci kernel 2.6.37 with usb modem (sierra wireless AirPrime MC8790V), and I noticed that the packet size is limited to 500bytes when using the modem: I ping with diffrerent length, and see that the maximum length for which ping succeed is limited to 500 bytes. Above it the pibg fails, and the reception of the modem will not succeed any more (until reset)
I see that buffer size is set in drivers / usb / serial / sierra.c :
buffer_size = max_t(int, serial->type->bulk_in_size,
le16_to_cpu(endpoint->wMaxPacketSize));
Do you have any idea how to chnage the packet size for this Usb modem ?
Thank you very much,
Ran