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wimax/i2400m: USB specific TX queue's minimum buffer room required for new message

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This patch specifies the TX queue's buffer room required by the
USB bus driver while allocating header space for a new message.
Please refer the documentation in the code.

Signed-off-by: Prasanna S. Panchamukhi <prasannax.s.panchamukhi@intel.com>
This commit is contained in:
Prasanna S. Panchamukhi 2010-04-13 16:36:33 -07:00 committed by Inaky Perez-Gonzalez
parent 8a3a1b65ee
commit 7ef9f9a4ee
1 changed files with 7 additions and 0 deletions
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7
drivers/net/wimax/i2400m/usb.c
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@ -467,6 +467,13 @@ int i2400mu_probe(struct usb_interface *iface,
usb_set_intfdata(iface, i2400mu);
i2400m->bus_tx_block_size = I2400MU_BLK_SIZE;
/*
* Room required in the Tx queue for USB message to accommodate
* a smallest payload while allocating header space is 16 bytes.
* Adding this room for the new tx message increases the
* possibilities of including any payload with size <= 16 bytes.
*/
i2400m->bus_tx_room_min = I2400MU_BLK_SIZE;
i2400m->bus_pl_size_max = I2400MU_PL_SIZE_MAX;
i2400m->bus_setup = NULL;
i2400m->bus_dev_start = i2400mu_bus_dev_start;