Hello, 2013/4/22 Jan Pohanka <xhpohanka@xxxxxxxxx>: > Dear all, > > I'm getting following message from cdc_acm driver when plugging in my > GSM module on Amlogic 8726-MXS platform (kernel v3.0.8): > > cdc_acm 1-1:1.4: ttyACM2: USB ACM device > [ 26.730474@0] cdc_acm 1-1:1.6: This device cannot do calls on its > own. It is not a modem. > [ 26.733206@0] cdc_acm 1-1:1.6: out of memory (write buffer alloc) > [ 26.740307@0] cdc_acm: probe of 1-1:1.6 failed with error -12 > > acm_write_buffers_alloc() function calls hcd_buffer_alloc() which > allocates coherent memory for DMA transfers through dma_pool_alloc or > dma_alloc_coherent. > Can please someone give me an advice where is the memory available for > these allocations defined? If I am not wrong you should take a look at the define CONSISTENT_DMA_SIZE. Regards, Daniele -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
